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JP2008208039A - Coumarin derivatives and their uses - Google Patents

Coumarin derivatives and their uses Download PDF

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JP2008208039A
JP2008208039A JP2007043878A JP2007043878A JP2008208039A JP 2008208039 A JP2008208039 A JP 2008208039A JP 2007043878 A JP2007043878 A JP 2007043878A JP 2007043878 A JP2007043878 A JP 2007043878A JP 2008208039 A JP2008208039 A JP 2008208039A
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compound
solution
molecular species
fluorescence
detection
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Hiroyuki Kagechika
弘之 影近
Tomoya Hirano
智也 平野
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Tokyo Medical and Dental University NUC
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Abstract

【課題】機能性蛍光物質として、特定の分子種の検出や溶液の脂溶性の高さの検出等に好適に利用可能な、新規なクマリン誘導体を提供する。
【解決手段】下記一般式(1)で表される化合物。

〔式中、R、R、R、R、Rは水素又はCOOR等、XはNRを示し、R、Rは水素、アルキル基等を示す。〕
【選択図】なし
The present invention provides a novel coumarin derivative that can be suitably used as a functional fluorescent substance for detection of a specific molecular species, detection of lipid solubility of a solution, and the like.
A compound represented by the following general formula (1):

[Wherein, R 1 , R 2 , R 3 , R 4 , R 5 represent hydrogen or COOR 6 or the like, X represents NR 6 R 7 , R 6 or R 7 represents hydrogen, an alkyl group or the like. ]
[Selection figure] None

Description

本発明は、新規なクマリン誘導体及びその蛍光物質としての用途に関する。   The present invention relates to a novel coumarin derivative and its use as a fluorescent substance.

特定の機能を持った蛍光物質は、多くの分野の科学研究において非常に有用である(非特許文献1〜2)。例えば、特定の分子種(イオン、小分子、酵素等)と結合又は反応することによってその蛍光特性(励起波長、蛍光波長、蛍光強度等)が変化する機能を持った蛍光分子は、その蛍光特性の変化から、分子種の濃度や活性を見積もることができる。
例えば、従来の蛍光物質として、カルシウムイオンと結合することによって蛍光強度が大きく変化するFluo−3(非特許文献3)や、一酸化窒素と反応することによって蛍光強度が増大するDAF−2(非特許文献4)が知られており(下記反応式参照)、このようなFluo−3やDAF−2は、それぞれカルシウム蛍光センサーや一酸化窒素蛍光センサーとして有用である。
A fluorescent substance having a specific function is very useful in scientific research in many fields (Non-Patent Documents 1 and 2). For example, a fluorescent molecule having the function of changing its fluorescence characteristics (excitation wavelength, fluorescence wavelength, fluorescence intensity, etc.) by binding or reacting with a specific molecular species (ion, small molecule, enzyme, etc.) From these changes, the concentration and activity of molecular species can be estimated.
For example, as a conventional fluorescent substance, Fluo-3 (Non-patent Document 3) whose fluorescence intensity changes greatly by binding to calcium ions, or DAF-2 (Non-Patent Document 3) whose fluorescence intensity increases by reacting with nitric oxide. Patent Document 4) is known (see the following reaction formula), and such Fluo-3 and DAF-2 are useful as a calcium fluorescence sensor and a nitric oxide fluorescence sensor, respectively.

また、このような蛍光物質は、例えば生命科学の研究では、測定対象の分子種の濃度や活性の時空間的な変化を、生きた生体、組織、細胞を用いて解析することができるため、生体内における分子種の機能を解析する為にも有用である。   In addition, for example, in life science research, such fluorescent substances can be analyzed using living organisms, tissues, and cells for spatiotemporal changes in the concentration and activity of the molecular species to be measured. It is also useful for analyzing the function of molecular species in vivo.

このような有用性の高さから、現在も更に新たな機能性蛍光物質の開発が求められている。   Due to such high utility, development of new functional fluorescent materials is still required.

Lackowitz,J.R.Principles of Fluorescence Spectroscopy,Third Edition;Springler Science:New York,2006.Lackowitz, J .; R. Principles of Fluorescence Spectroscopy, Third Edition; Springer Science: New York, 2006. da Silva,A.P.;Gunaratne,H.Q.;Gunnlaugsson,T.;Huxley,A.J.M.;McCoy,C.P.;Rademacher,J.T.;Rice,T.E.Chem.Rev.1997,97,1515−1566.da Silva, A .; P. Gunaratne, H .; Q. Gunnlaggsson, T .; Huxley, A .; J. et al. M.M. McCoy, C .; P. Rademacher, J .; T.A. Rice, T .; E. Chem. Rev. 1997, 97, 1515-1566. Minta,A.;Kao,J.P.Y.;Tsien,R.Y.J.Biol.Chem.1989,264,8171−8178.Minta, A.M. Kao, J .; P. Y. Tsien, R .; Y. J. et al. Biol. Chem. 1989, 264, 8171-8178. Kojima,H.;Nakatsubo,N.;Kikuchi,K.;Kawahara,S.;Kirino,Y.;Nagoshi,H.;Hirata,Y.;Nagano,T.Anal.Chem.1998,70,2446−2453.Kojima, H .; Nakatsubo, N .; Kikuchi, K .; Kawahara, S .; Kirino, Y .; Nagashi, H .; Hirata, Y .; Nagano, T .; Anal. Chem. 1998, 70, 2446-2453.

本発明は、前記諸問題を解決し、以下の目的を達成することを課題とする。即ち、本発明は、機能性蛍光物質として、特定の分子種の検出や溶液の脂溶性の高さの検出等に好適に利用可能な、新規なクマリン誘導体を提供することを目的とする。   An object of the present invention is to solve the above problems and achieve the following object. That is, an object of the present invention is to provide a novel coumarin derivative that can be suitably used as a functional fluorescent substance for detection of a specific molecular species, detection of lipid solubility in a solution, and the like.

本発明者らは、機能性蛍光物質を開発するための方法論として、多種類の候補蛍光物質からなるライブラリー構築が有用であると考えた。そこで本発明者らは、図1に示すように、単一の原料(蛍光団)から同様の反応条件にて多種類の化合物を効率よく得るというコンビナトリアル合成法を蛍光物質に適用し、クマリンを基本骨格とした蛍光物質ライブラリーの構築を行っている。   The present inventors considered that construction of a library composed of many kinds of candidate fluorescent substances is useful as a methodology for developing functional fluorescent substances. Therefore, as shown in FIG. 1, the present inventors applied a combinatorial synthesis method for efficiently obtaining many kinds of compounds under the same reaction conditions from a single raw material (fluorophore) to a fluorescent substance, We are constructing a fluorescent substance library with a basic skeleton.

クマリンの構造、並びに置換位置は以下の通りである。クマリンに蛍光性を持たせるために、通常、7位には水酸基、アミノ基、アルコキシル基等の電子供与性基が導入される。   The structure of coumarin and the substitution position are as follows. In order to give coumarin fluorescence, an electron donating group such as a hydroxyl group, an amino group or an alkoxyl group is usually introduced at the 7-position.

これまでに、クマリンの3位に様々な置換基を導入した蛍光物質ライブラリーが報告されていたが(Schiedel,M.−S.;Briehen,C.A.;Bauerle,P.Angew.Chem.Int.Ed.2001,40,4677−4680.又はSilvakumar,K.;Xie,F.;Cash,B.M.;Long,S.;Barnhill,H.N.;Wang,Q.Org.Lett.2004,6,4603−4606.参照)、これに対し、本発明者らは今回、クマリンの5,6,8位に着目し、芳香環、トリアゾール環を含む置換基を効率的に導入する合成法の開発を行った。
その結果、本発明者らは、特定の分子種を検出し得るプローブ(蛍光センサー分子)や、環境応答型蛍光分子等として好適に利用可能な新規クマリン誘導体を見出し、本発明の完成に至った。
So far, a fluorescent substance library in which various substituents are introduced at the 3-position of coumarin has been reported (Schiedel, MS; Briehen, CA; Bauerle, P. Angew. Chem.). Int.Ed. 2001, 40, 4679-4680. Or Silvakumar, K.; Xie, F.; Cash, B.M.; Long, S.; Barnhill, H.N .; Wang, Q. Org.Lett. 2004, 6, 4603-4606.) On the other hand, the present inventors focused on the 5, 6 and 8 positions of coumarin, and this time, the synthesis which introduces the substituent which includes the aromatic ring and the triazole ring efficiently The law was developed.
As a result, the present inventors have found a novel coumarin derivative that can be suitably used as a probe (fluorescent sensor molecule) capable of detecting a specific molecular species, an environmentally responsive fluorescent molecule, and the like, and has completed the present invention. .

本発明は、本発明者らの前記知見に基づくものであり、前記課題を解決するための手段としては、以下の通りである。即ち、
<1> 下記一般式(1)で表されることを特徴とする化合物である。
〔一般式(1)中、Rは水素又はCOORを示し;Rは水素、CH、CF又はCHCOORを示し;XはOR又はNRを示し;R、R及びRはそれぞれ独立に水素、又は下記一般式(2):
で表されるいずれかを示し;YはR、OR、NR、NO、COOR又はCNを示し、或いはYはそれが結合するベンゼン環の隣接する2つの炭素と共に複素環を形成していてもよく;Rは水素、置換基を有していてもよいCH、C又はC(=O)CHを示し;Rは水素、置換基を有していてもよいCH、C又はC(=O)CHを示す。〕
<2> 下記構造式(3a)〜(3o)の少なくともいずれかで表される前記<1>に記載の化合物である。
〔構造式(3a)〜(3o)中、Arはそれぞれ下記の構造:
を示す。〕
<3> 前記<1>から<2>のいずれかに記載の化合物を1種以上含むことを特徴とする特定の分子種の検出剤である。
<4> 前記<1>から<2>のいずれかに記載の化合物を1種以上用いることを特徴とする特定の分子種の検出方法である。
<5> 前記<1>から<2>のいずれかに記載の化合物を1種以上含むことを特徴とする溶液の脂溶性の高さの検出剤である。
<6> 前記<1>から<2>のいずれかに記載の化合物を1種以上用いることを特徴とする溶液の脂溶性の高さの検出方法である。
The present invention is based on the above findings of the present inventors, and means for solving the above problems are as follows. That is,
<1> A compound represented by the following general formula (1).
[In General Formula (1), R 1 represents hydrogen or COOR 6 ; R 2 represents hydrogen, CH 3 , CF 3 or CH 2 COOR 6 ; X represents OR 6 or NR 6 R 7 ; R 3 , R 4 and R 5 are each independently hydrogen or the following general formula (2):
Y represents R 6 , OR 6 , NR 6 R 7 , NO 2 , COOR 6 or CN, or Y represents a heterocycle with two adjacent carbons of the benzene ring to which it is bonded. R 6 represents hydrogen, optionally substituted CH 3 , C 2 H 5 or C (═O) CH 3 ; R 7 represents hydrogen, substituted CH 3 , C 2 H 5 or C (═O) CH 3 that may be present is shown. ]
<2> The compound according to <1>, which is represented by at least one of the following structural formulas (3a) to (3o).
[In the structural formulas (3a) to (3o), Ar represents the following structures:
Indicates. ]
<3> A detection agent for a specific molecular species comprising one or more compounds according to any one of <1> to <2>.
<4> A method for detecting a specific molecular species, wherein one or more compounds according to any one of <1> to <2> are used.
<5> A lipid-soluble detection agent for a solution, comprising one or more compounds according to any one of <1> to <2>.
<6> A method for detecting the high fat solubility of a solution, comprising using one or more compounds according to any one of <1> to <2>.

本発明によれば、前記従来における諸問題を解決し、前記目的を達成することができ、機能性蛍光物質として、特定の分子種の検出や溶液の脂溶性の高さの検出等に好適に利用可能な、新規なクマリン誘導体を提供することができる。   According to the present invention, the conventional problems can be solved and the object can be achieved, and as a functional fluorescent substance, it is suitable for detection of specific molecular species, detection of high lipid solubility of a solution, and the like. A novel coumarin derivative that can be used can be provided.

(化合物)
本発明の化合物は、下記一般式(1)で表されることを特徴とする新規クマリン誘導体である。
(Compound)
The compound of the present invention is a novel coumarin derivative represented by the following general formula (1).

<一般式(1)>
前記一般式(1)中、Rは水素又はCOORを示し;Rは水素、CH、CF又はCHCOORを示し;XはOR又はNRを示し;R、R及びRはそれぞれ独立に水素、又は下記一般式(2):
<General formula (1)>
In the general formula (1), R 1 represents hydrogen or COOR 6 ; R 2 represents hydrogen, CH 3 , CF 3 or CH 2 COOR 6 ; X represents OR 6 or NR 6 R 7 ; R 3 , R 4 and R 5 are each independently hydrogen or the following general formula (2):

で表されるいずれかを示し;YはR、OR、NR、NO、COOR又はCNを示し、或いはYはそれが結合するベンゼン環の隣接する2つの炭素と共に複素環を形成していてもよく;Rは水素、置換基を有していてもよいCH、C又はC(=O)CHを示し;Rは水素、置換基を有していてもよいCH、C又はC(=O)CHを示す。 Y represents R 6 , OR 6 , NR 6 R 7 , NO 2 , COOR 6 or CN, or Y represents a heterocycle with two adjacent carbons of the benzene ring to which it is bonded. R 6 represents hydrogen, optionally substituted CH 3 , C 2 H 5 or C (═O) CH 3 ; R 7 represents hydrogen, substituted CH 3 , C 2 H 5 or C (═O) CH 3 that may be present is shown.

前記Yが、それ(Y)が結合するベンゼン環の隣接する2つの炭素と共に複素環を形成する場合の前記複素環としては、特に制限はなく、目的に応じて適宜選択することができ、例えば、ピロール環、イミダゾール環、ピラゾール環、トリアゾール環、チアゾール環、オキサゾール環、ピリジン環、ピリダジン環、ピリミジン環、ピラジン環などが挙げられる。
これらの中でも、前記複素環としてはトリアゾール環が好ましい。
The heterocyclic ring in the case where Y forms a heterocyclic ring with two adjacent carbons of the benzene ring to which it is bonded is not particularly limited and can be appropriately selected according to the purpose. Pyrrole ring, imidazole ring, pyrazole ring, triazole ring, thiazole ring, oxazole ring, pyridine ring, pyridazine ring, pyrimidine ring, pyrazine ring and the like.
Among these, the heterocyclic ring is preferably a triazole ring.

前記R及び前記Rにおいて、前記CH、C又はC(=O)CHが置換基を有する場合の前記置換基としては、特に制限はなく、目的に応じて適宜選択することができ、例えば、ハロゲン原子、フェニル基、イミダゾール環、ピリジン環等の複素環基などが挙げられる。前記置換基は、前記CH、C又はC(=O)CHの1つ乃至複数の水素と置換される。複数の水素と置換される場合には、同一の置換基で置換してもよく、異なる置換基で置換してもよい。前記ハロゲン原子としては、例えば、フッ素原子、塩素原子、臭素原子、ヨウ素原子などが挙げられる。
なお、前記R、前記Rとしては、メチル(CH)基、エチル(C)基が好ましい。
In R 6 and R 7 , the substituent when CH 3 , C 2 H 5 or C (═O) CH 3 has a substituent is not particularly limited and is appropriately selected depending on the purpose. Examples thereof include a heterocyclic group such as a halogen atom, a phenyl group, an imidazole ring, and a pyridine ring. The substituent is substituted with one or more hydrogens of the CH 3 , C 2 H 5 or C (═O) CH 3 . When a plurality of hydrogen atoms are substituted, they may be substituted with the same substituent or may be substituted with different substituents. Examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.
Incidentally, the R 6, as the R 7 is methyl (CH 3) group, ethyl (C 2 H 5) group.

<具体例>
前記一般式(1)で表される化合物の具体例としては、例えば下記構造式(3a)〜(3o)の少なくともいずれかで表される化合物などが好適に挙げられる。
<Specific example>
Specific examples of the compound represented by the general formula (1) include, for example, compounds represented by at least any one of the following structural formulas (3a) to (3o).

前記構造式(3a)〜(3o)中、Arはそれぞれ下記の構造を示す。   In the structural formulas (3a) to (3o), Ar represents the following structure.

<製造>
前記化合物(3a)〜(3o)の製造方法については、後述する実施例1に詳細かつ具体的に示した。実施例1に記載した方法によれば、一種類の原料化合物(化合物1:実施例1参照)から、同様の反応条件により、多種類の化合物(化合物3a〜3o)を効率的に得ることができる。
当業者であれば、実施例1の具体的説明を参照しつつ、原料化合物、反応条件、試薬等を適宜選択し、必要に応じてこれらの方法に適宜の修飾乃至改変を加えることにより、前記一般式(1)に含まれる化合物をいずれも効率的に製造することができる。
<Manufacturing>
About the manufacturing method of the said compounds (3a)-(3o), it showed in detail and concretely in Example 1 mentioned later. According to the method described in Example 1, multiple types of compounds (compounds 3a to 3o) can be efficiently obtained from one kind of raw material compound (compound 1: see Example 1) under the same reaction conditions. it can.
A person skilled in the art can appropriately select raw material compounds, reaction conditions, reagents and the like while referring to the specific description of Example 1, and appropriately modify or modify these methods as necessary. Any compound contained in the general formula (1) can be produced efficiently.

<用途>
前記一般式(1)で表される化合物は、蛍光性を有する新規クマリン誘導体であり、その蛍光性を利用して種々の用途に好適に利用可能である。例えば、前記化合物は、後述するような本発明の特定の分子種の検出方法/検出剤や溶液の脂溶性の高さの検出方法/検出剤に好適に利用可能であり、また、これら以外にも様々な用途に好適に利用可能である。
また、例えば前記したような製造方法によれば、一種類の原料化合物から、同様の反応条件により、多種類の一般式(1)で表される化合物を効率的に得ることができる。得られた多種類の化合物は、それぞれが単独で有用であることは勿論であるが、更には得られた多種類の化合物群全体からなる蛍光物質ライブラリーとしても有用である。多種類の化合物を含む蛍光物質ライブラリーを構築しておくことにより、例えば、前記蛍光物質ライブラリーから、所望の機能性を有する蛍光物質(化合物)をより効率的に探索することが可能となる。
<Application>
The compound represented by the general formula (1) is a novel coumarin derivative having fluorescence, and can be suitably used for various applications using the fluorescence. For example, the compound can be suitably used for the detection method / detection agent for the specific molecular species of the present invention and the detection method / detection agent for the lipophilicity of the solution as described later. Can be suitably used for various applications.
For example, according to the production method as described above, various types of compounds represented by the general formula (1) can be efficiently obtained from one kind of raw material compound under the same reaction conditions. Of course, each of the obtained many kinds of compounds is useful alone, but is also useful as a fluorescent substance library composed of the whole obtained many kinds of compounds. By constructing a fluorescent substance library including many kinds of compounds, for example, it becomes possible to more efficiently search for fluorescent substances (compounds) having desired functionality from the fluorescent substance library. .

(特定の分子種の検出方法/特定の分子種の検出剤)
本発明の特定の分子種の検出方法は、前記した本発明の化合物の1種以上を用いることを特徴とする。以下、本発明の特定の分子種の検出方法の説明を通じ、本発明の特定の分子種の検出剤についても説明するものとする。
(Detection method for specific molecular species / detection agent for specific molecular species)
The method for detecting a specific molecular species of the present invention is characterized by using one or more of the aforementioned compounds of the present invention. Hereinafter, the detection agent for the specific molecular species of the present invention will also be described through the description of the method for detecting the specific molecular species of the present invention.

前記したように、本発明の化合物は蛍光性を有する化合物(本明細書中「蛍光物質」と称することがある)であるが、本発明者らは更に、前記化合物が、それらの構造の違いに応じてそれぞれ異なる蛍光特性を有していることを見出した(実施例2(1)参照)。したがって、これらの化合物によれば、前記化合物に結合又は反応することにより前記化合物の構造を変化させる特定の分子種の濃度や活性の強さを、前記化合物の蛍光特性の変化を指標として容易に検出することが可能となる。   As described above, the compound of the present invention is a compound having fluorescence (sometimes referred to as “fluorescent substance” in the present specification). It was found that each had a different fluorescence characteristic (see Example 2 (1)). Therefore, according to these compounds, the concentration and intensity of activity of a specific molecular species that changes the structure of the compound by binding to or reacting with the compound can be easily determined using the change in the fluorescence characteristics of the compound as an index. It becomes possible to detect.

<特定の分子種>
前記「特定の分子種」の種類としては、前記化合物に結合又は反応することにより、前記化合物の蛍光特性を変化させる性質を有する分子種であれば、特に制限はなく、目的に応じて適宜選択することができ、例えば、イオン(水素イオン、カルシウムイオンなど)、小分子(一酸化窒素、一重項酸素など)、酵素(ペプチダーゼ、脱アルキル化酵素など)等から適宜選択することができる。
<Specific molecular species>
The type of the “specific molecular species” is not particularly limited as long as it is a molecular species that has the property of changing the fluorescence characteristics of the compound by binding or reacting with the compound, and is appropriately selected according to the purpose. For example, it can be appropriately selected from ions (hydrogen ions, calcium ions, etc.), small molecules (nitrogen monoxide, singlet oxygen, etc.), enzymes (peptidases, dealkylases, etc.) and the like.

<検出>
前記特定の分子種の検出方法の実施方法としては、特に制限はなく、目的に応じて適宜選択することができ、例えば、検出対象の試料(例えば、前記特定の分子種を含む試料、前記特定の分子種を含むか否かを評価したい試料等)と、前記化合物とを接触させ、接触前後での前記化合物の蛍光特性の変化を、公知の蛍光測定装置等を用いて測定する方法などが挙げられる。
なお、前記蛍光特性の変化としては、特に制限はなく、目的に応じて適宜選択することができ、例えば、蛍光強度の変化、蛍光波長の変化、励起波長の変化などが挙げられる。
接触前後での前記化合物の蛍光特性の変化の有無や、その変化の程度等から、前記試料中の特定の分子種の濃度や活性の強さ等を、適宜判断することができる(具体例としては、後述する実施例2(1)参照)。
<Detection>
The method for carrying out the method for detecting the specific molecular species is not particularly limited and can be appropriately selected according to the purpose. For example, a sample to be detected (for example, a sample containing the specific molecular species, the specific A sample that is to be evaluated whether or not it contains a molecular species) and the compound, and a method of measuring a change in the fluorescence characteristics of the compound before and after contact using a known fluorescence measuring apparatus or the like. Can be mentioned.
The change in the fluorescence characteristic is not particularly limited and can be appropriately selected according to the purpose. Examples thereof include a change in fluorescence intensity, a change in fluorescence wavelength, and a change in excitation wavelength.
From the presence / absence of the change in the fluorescence characteristics of the compound before and after contact, the degree of the change, etc., the concentration of the specific molecular species in the sample and the strength of activity can be appropriately determined (as a specific example) (See Example 2 (1) described later).

なお、前記検出方法によれば、生きた生体、組織、細胞等を前記試料として用い、これらにおける特定の分子種の濃度や活性の時空間的な変化等を解析することもできる。したがって、前記検出方法は、例えば生命科学の分野において非常に好適である。   According to the detection method, a living organism, tissue, cell, or the like can be used as the sample, and the concentration or activity of a specific molecular species in these can be analyzed in terms of time and space. Therefore, the detection method is very suitable, for example, in the field of life science.

<検出剤>
前記特定の分子種の検出方法において、検出対象の試料と接触させる前記化合物としては、前記した本発明の化合物を1種以上含む検出剤(本発明の特定の分子種の検出剤)を使用することが好ましい。前記検出剤に含まれる前記化合物の種類は、検出したい前記分子種の種類に応じて適宜選択することができ、また、前記化合物は1種単独で使用してもよいし、2種以上を併用してもよい。
前記検出剤は、前記化合物そのものであってもよいし、或いは更に適宜その他の成分を含んでいてもよい。前記その他の成分の種類としては、特に制限はなく、目的に応じて適宜選択することができる。また、前記検出剤中の前記化合物と前記その他の成分との含有量比としても、特に制限はなく、目的に応じて適宜選択することができる。
<Detection agent>
In the detection method of the specific molecular species, as the compound to be brought into contact with the sample to be detected, a detection agent (detection agent of the specific molecular species of the present invention) containing one or more of the compounds of the present invention described above is used. It is preferable. The type of the compound contained in the detection agent can be appropriately selected according to the type of the molecular species to be detected, and the compounds may be used alone or in combination of two or more. May be.
The detection agent may be the compound itself or may further contain other components as appropriate. There is no restriction | limiting in particular as a kind of said other component, According to the objective, it can select suitably. Moreover, there is no restriction | limiting in particular as content ratio of the said compound in the said detection agent, and the said other component, According to the objective, it can select suitably.

(溶液の脂溶性の高さの検出方法/溶液の脂溶性の高さの検出剤)
本発明の溶液の脂溶性の高さの検出方法は、前記した本発明の化合物の1種以上を用いることを特徴とする。以下、本発明の溶液の脂溶性の高さの検出方法の説明を通じ、本発明の溶液の脂溶性の高さの検出剤についても説明するものとする。
(Detection method for high fat solubility of solution / detection agent for high fat solubility of solution)
The method for detecting the lipophilicity of the solution of the present invention is characterized by using one or more of the aforementioned compounds of the present invention. Hereinafter, the detection agent for the high fat solubility of the solution of the present invention will also be described through the description of the method for detecting the high fat solubility of the solution of the present invention.

前記したように、本発明の化合物は蛍光性を有する化合物(蛍光物質)であるが、本発明者らは更に、前記化合物が、溶液の脂溶性の高さの違いに応じて蛍光特性が変化する性質を有していることを見出した(実施例2(2)参照)。したがって、これらの化合物によれば、溶液の脂溶性の高さを、前記化合物の蛍光特性の変化を指標として、容易に検出することが可能となる。   As described above, the compound of the present invention is a fluorescent compound (fluorescent substance). However, the present inventors further change the fluorescence characteristics of the compound according to the difference in the lipid solubility of the solution. (See Example 2 (2)). Therefore, according to these compounds, it becomes possible to easily detect the high lipophilicity of the solution using the change in the fluorescence characteristics of the compound as an index.

<溶液>
前記「溶液」の種類としては、特に制限はなく、脂溶性の高さを検出したい任意の溶液を、目的に応じて適宜選択することができる。なお、前記「脂溶性」とは、溶媒分子の分極状態を表す指標であり、分極が強い分子は「脂溶性が低い」、分極が弱い分子は「脂溶性が高い」と表される。
<Solution>
There is no restriction | limiting in particular as a kind of said "solution", The arbitrary solutions which want to detect the fat-soluble height can be suitably selected according to the objective. The “fat-soluble” is an index representing the polarization state of solvent molecules. A molecule with strong polarization is expressed as “low in fat solubility” and a molecule with low polarization as “high in fat solubility”.

<検出>
前記溶液の脂溶性の高さの検出方法の実施方法としては、特に制限はなく、目的に応じて適宜選択することができ、例えば、検出対象の溶液中での前記化合物の蛍光特性を、公知の蛍光測定装置等を用いて測定し、その蛍光特性を、同様に測定した対照溶液(既に脂溶性の高さがわかっている溶液)中での前記化合物の蛍光特性と比較する方法などが挙げられる。
なお、前記蛍光特性としては、特に制限はなく、目的に応じて適宜選択することができ、例えば、蛍光強度、蛍光波長、励起波長などが挙げられる。
前記検出対象溶液中での蛍光特性と、前記対照溶液中での蛍光特性とを比較することにより、前記検出対象溶液の脂溶性の高さを、前記対照溶液の脂溶性の高さを基準として相対的に判断することができる。
より具体的には、例えば、前記検出対象溶液中での蛍光強度が、前記対照溶液中での蛍光強度よりも高かった場合に、前記検出対象溶液の脂溶性は、前記対照溶液よりも相対的に高いと判断することができ、逆に、前記検出対象溶液中での蛍光強度が、前記対照溶液中での蛍光強度よりも低かった場合に、前記検出対象溶液の脂溶性は、前記対照溶液よりも相対的に低いと判断することができる(実施例2(2)参照)。
<Detection>
The method for detecting the lipid solubility of the solution is not particularly limited and can be appropriately selected depending on the purpose. For example, the fluorescence characteristics of the compound in the solution to be detected are publicly known. And a method of comparing the fluorescence characteristics with the fluorescence characteristics of the compound in a control solution (a solution already known to have high lipid solubility) measured in the same manner.
In addition, there is no restriction | limiting in particular as said fluorescence characteristic, According to the objective, it can select suitably, For example, fluorescence intensity, a fluorescence wavelength, an excitation wavelength, etc. are mentioned.
By comparing the fluorescence characteristics in the detection target solution with the fluorescence characteristics in the control solution, the level of fat solubility of the detection target solution is determined based on the level of fat solubility of the control solution. It can be judged relatively.
More specifically, for example, when the fluorescence intensity in the detection target solution is higher than the fluorescence intensity in the control solution, the fat solubility of the detection target solution is relative to that of the control solution. Conversely, when the fluorescence intensity in the detection target solution is lower than the fluorescence intensity in the control solution, the fat solubility of the detection target solution is the control solution. Therefore, it can be determined that it is relatively lower (see Example 2 (2)).

<検出剤>
前記溶液の脂溶性の高さの検出に使用する前記化合物としては、前記した本発明の化合物を1種以上含む検出剤(本発明の溶液の脂溶性の高さの検出剤)を使用することが好ましい。前記検出剤に含まれる前記化合物の種類は、目的に応じて適宜選択することができ、また、前記化合物は1種単独で使用してもよいし、2種以上を併用してもよい。中でも、前記化合物としては、脂溶性の高さの違いによる蛍光強度の違いが大きく、検出がし易い点で、例えば化合物3fや化合物3hが好ましいと考えられる(実施例2(2)参照)。
前記検出剤は、前記化合物そのものであってもよいし、或いは更に適宜その他の成分を含んでいてもよい。前記その他の成分の種類としては、特に制限はなく、目的に応じて適宜選択することができる。また、前記検出剤中の前記化合物と前記その他の成分との含有量比としても、特に制限はなく、目的に応じて適宜選択することができる。
<Detection agent>
As the compound used for detecting the high fat solubility of the solution, a detection agent containing at least one compound of the present invention described above (detection agent for the high fat solubility of the solution of the present invention) is used. Is preferred. The type of the compound contained in the detection agent can be appropriately selected depending on the purpose, and the compounds may be used alone or in combination of two or more. Among them, as the compound, for example, the compound 3f and the compound 3h are considered to be preferable in that the difference in fluorescence intensity due to the difference in lipid solubility is large and the detection is easy (see Example 2 (2)).
The detection agent may be the compound itself or may further contain other components as appropriate. There is no restriction | limiting in particular as a kind of said other component, According to the objective, it can select suitably. Moreover, there is no restriction | limiting in particular also as content ratio of the said compound in the said detection agent, and the said other component, According to the objective, it can select suitably.

以下に本発明の実施例について説明するが、本発明はこれらの実施例に何ら限定されるものではない。   Examples of the present invention will be described below, but the present invention is not limited to these examples.

(実施例1:化合物3a〜3oの合成)
実施例1では、下記の合成スキームに従い、本発明の化合物3a〜3oの合成を行った。
(Example 1: Synthesis of compounds 3a to 3o)
In Example 1, the compounds 3a to 3o of the present invention were synthesized according to the following synthesis scheme.

以下、化合物3a〜3oの合成手順を詳細に説明する。
なお、上記合成スキームの化合物1は既報の文献(Corrie,J.E.T.;Munasinghe,V.R.N.;Rettig,W.J.Heterocyclic.Chem.2000,37,1447−1455.参照)に記された方法により合成した。化合物2a〜2lは市販品をそのまま用いた。前記市販品はそれぞれ、東京化成工業株式会社、Aldrich社、和光純薬工業株式会社のいずれかから適宜入手した。化合物3kは化合物3mに、化合物3lは化合物3nに、化合物3nは化合物3oへと変換し、本発明の化合物15種類(3a〜3o)から成る蛍光物質ライブラリーを構築した。
Hereinafter, the synthesis procedure of compounds 3a to 3o will be described in detail.
In addition, the compound 1 of the said synthetic scheme is the literature (Corrie, JET ;; Munasinghe, VRN; Retig, WJ Heterocyclic. Chem.2000, 37, 1447-1455. ). As compounds 2a to 2l, commercially available products were used as they were. Each of the commercially available products was appropriately obtained from any of Tokyo Chemical Industry Co., Ltd., Aldrich, and Wako Pure Chemical Industries, Ltd. Compound 3k was converted to compound 3m, compound 3l was converted to compound 3n, and compound 3n was converted to compound 3o to construct a fluorescent substance library consisting of 15 compounds (3a to 3o) of the present invention.

<化合物3aの合成>
化合物2a(34.3mg,0.168mmol)、フッ化セシウム(43.5mg,0.286mmol)、1,1’−ビス(ジフェニルホスフィノフェロセン)ジクロロパラジウム(II)・塩化メチレン錯体(PdCl(dppf)・CHCl,9.4mg,0.012mmol)をDMF(1ml)に溶かした溶液に、化合物1(20.3mg,0.055mmol)をアルゴン雰囲気下、室温で加え、60℃に加熱して2時間撹拌した。室温まで冷却した後、反応液を酢酸エチルで希釈し、飽和塩化アンモニウム水溶液、水、飽和食塩水で洗浄した。減圧下で溶媒を留去し、カラムクロマトグラフィーで精製することによって、黄色固体の化合物3a(14.5mg,72%)を得た。
融点:123−124℃;H NMR(500MHz,CDCl)・・・8.44(s,1H),7.40(m,4H),7.31(m,1H),7.28(s,1H),6.85(s,1H),4.37(q,J=7.1Hz,2H),3.03(q,J=7.1Hz,4H),1.37(t,J=7.1Hz,3H),0.95(t,J=7.0Hz,6H);13C NMR(125MHz,CDCl)・・・163.8,157.6,156.4,155.2,148.8,140.5,132.7,131.6,128.7(2C),128.2(2C),127.3,112.8,111.1,105.7,61.4,45.8(2C),14.3,12.1(2C);HRMS(ESI)calcd for C2223NONa(M+Na) 388.1525.Found 388.1502;Anal.Calcd for C2223NO:C,72.31;H,6.34;N,3.83.Found:C,72.33;H,6.45;N,3.56.
<Synthesis of Compound 3a>
Compound 2a (34.3 mg, 0.168 mmol), cesium fluoride (43.5 mg, 0.286 mmol), 1,1′-bis (diphenylphosphinoferrocene) dichloropalladium (II) · methylene chloride complex (PdCl 2 ( dppf) · CH 2 Cl 2 , 9.4 mg, 0.012 mmol) in DMF (1 ml) was added Compound 1 (20.3 mg, 0.055 mmol) at room temperature under an argon atmosphere at 60 ° C. Heated and stirred for 2 hours. After cooling to room temperature, the reaction mixture was diluted with ethyl acetate and washed with saturated aqueous ammonium chloride solution, water and saturated brine. The solvent was distilled off under reduced pressure, and the residue was purified by column chromatography to obtain a yellow solid compound 3a (14.5 mg, 72%).
Melting point: 123-124 ° C; 1 H NMR (500 MHz, CDCl 3 ) ... 8.44 (s, 1 H), 7.40 (m, 4 H), 7.31 (m, 1 H), 7.28 ( s, 1H), 6.85 (s, 1H), 4.37 (q, J = 7.1 Hz, 2H), 3.03 (q, J = 7.1 Hz, 4H), 1.37 (t, J = 7.1 Hz, 3H), 0.95 (t, J = 7.0 Hz, 6H); 13 C NMR (125 MHz, CDCl 3 )... 163.8, 157.6, 156.4, 155. 2, 148.8, 140.5, 132.7, 131.6, 128.7 (2C), 128.2 (2C), 127.3, 112.8, 111.1, 105.7, 61. 4,45.8 (2C), 14.3,12.1 (2C ); HRMS (ESI) calcd for C 22 23 NO 4 Na (M + Na ) + 388.1525. Found 388.1502; Anal. Calcd for C 22 H 23 NO 4 : C, 72.31; H, 6.34; N, 3.83. Found: C, 72.33; H, 6.45; N, 3.56.

<化合物3bの合成>
化合物3aの合成と同様の方法で、化合物1と化合物2bから、収率85%で黄色粉状物の化合物3bを得た。
融点:170−171℃;H NMR(500MHz,CDCl)・・・8.42(s,1H),7.23(s,1H),7.21(d,J=8.4Hz,2H),6.80(s,1H),6.73(d,J=8.3Hz,2H),4.36(q,J=7.1Hz,2H),3.76(br s,2H),3.05(q,J=7.1Hz,4H),1.36(t,J=7.1Hz,3H),0.95(t,J=7.1Hz,6H);13C NMR(125MHz,CDCl)・・・163.8,157.8,156.1,155.4,148.9,145.2,132.3,131.7,130.8,129.1(2C),115.5(2C),112.4,111.1,105.6,61.4,45.5(2C),14.3,12.1(2C);HRMS(ESI)calcd for C2224Na(M+Na) 403.1634.Found 403.1608;Anal.Calcd for C2224・1/8HO:C,69.05;H,6.39;N,7.32.Found:C,69.05;H,6.36;N,7.34.
<Synthesis of Compound 3b>
In the same manner as in the synthesis of Compound 3a, Compound 3b as a yellow powder was obtained from Compound 1 and Compound 2b in a yield of 85%.
Melting point: 170-171 ° C .; 1 H NMR (500 MHz, CDCl 3 ) ... 8.42 (s, 1H), 7.23 (s, 1H), 7.21 (d, J = 8.4 Hz, 2H ), 6.80 (s, 1H), 6.73 (d, J = 8.3 Hz, 2H), 4.36 (q, J = 7.1 Hz, 2H), 3.76 (brs, 2H) , 3.05 (q, J = 7.1 Hz, 4H), 1.36 (t, J = 7.1 Hz, 3H), 0.95 (t, J = 7.1 Hz, 6H); 13 C NMR ( 125 MHz, CDCl 3 ) ... 163.8, 157.8, 156.1, 155.4, 148.9, 145.2, 132.3, 131.7, 130.8, 129.1 (2C) 115.5 (2C), 112.4, 111.1, 105.6, 61.4, 45.5 (2C), 14.3, 1 .1 (2C); HRMS (ESI ) calcd for C 22 H 24 N 2 O 4 Na (M + Na) + 403.1634. Found 403.1608; Anal. Calcd for C 22 H 24 N 2 O 4 · 1 / 8H 2 O: C, 69.05; H, 6.39; N, 7.32. Found: C, 69.05; H, 6.36; N, 7.34.

<化合物3cの合成>
化合物3aの合成と同様の方法で、化合物1と化合物2cから、収率63%で黄色針状物の化合物3cを得た。
融点:125−126℃;H NMR(500MHz,CDCl)・・・8.43(s,1H),7.57(d,J=8.1Hz,2H),7.48(s,1H),7.38(d,J=8.2Hz,2H),7.25(s,1H),6.82(s,1H),4.36(q,J=7.1Hz,2H),3.03(q,J=7.0Hz,4H),2.19(s,3H),1.36(t,J=7.1Hz,3H),0.95(t,J=7.0Hz,6H);13C NMR(125MHz,CDCl)・・・168.4,163.7,157.7,156.3,155.3,148.8,137.3,136.1,132.6,131.1,128.7(2C),120.0(2C),112.8,111.2,105.9,61.5,45.7(2C),24.6,14.3,12.1(2C);HRMS(ESI)calcd for C2426Na(M+Na) 445.1739.Found 445.1713;Anal.Calcd for C2426:C,68.23;H,6.20;N,6.63.Found:C,68.03;H,6.23;N,6.57.
<Synthesis of Compound 3c>
In the same manner as the synthesis of compound 3a, yellow needle-like compound 3c was obtained from compound 1 and compound 2c in a yield of 63%.
Melting point: 125-126 ° C .; 1 H NMR (500 MHz, CDCl 3 )... 8.43 (s, 1 H), 7.57 (d, J = 8.1 Hz, 2 H), 7.48 (s, 1 H) ), 7.38 (d, J = 8.2 Hz, 2H), 7.25 (s, 1H), 6.82 (s, 1H), 4.36 (q, J = 7.1 Hz, 2H), 3.03 (q, J = 7.0 Hz, 4H), 2.19 (s, 3H), 1.36 (t, J = 7.1 Hz, 3H), 0.95 (t, J = 7.0 Hz) , 6H); 13 C NMR (125 MHz, CDCl 3 ) 168.4, 163.7, 157.7, 156.3, 155.3, 148.8, 137.3, 136.1, 132. 6, 131.1, 128.7 (2C), 120.0 (2C), 112.8, 111.2, 105.9, 61.5, 4 5.7 (2C), 24.6,14.3,12.1 (2C ); HRMS (ESI) calcd for C 24 H 26 N 2 O 5 Na (M + Na) + 445.1739. Found 445.7133; Anal. Calcd for C 24 H 26 N 2 O 5: C, 68.23; H, 6.20; N, 6.63. Found: C, 68.03; H, 6.23; N, 6.57.

<化合物3dの合成>
化合物3aの合成と同様の方法で、化合物1と化合物2dから、収率66%で黄色固体の化合物3dを得た。
融点:166−168℃;H NMR(500MHz,CDCl)・・・8.42(s,1H),7.29(d,J=8.7Hz,2H),7.24(s,1H),6.80(s,1H),6.73(d,J=8.4Hz,2H),4.36(q,J=7.1Hz,2H),3.06(q,J=7.1Hz,4H),2.97(s,6H),1.36(t,J=7.1Hz,3H),0.96(t,J=7.1Hz,6H);13C NMR(125MHz,CDCl)・・・163.9,157.8,155.9,155.5,149.6,148.9,132.2,131.9,128.7(2C),128.2,112.5(2C),112.3,111.1,105.6,61.3,45.5(2C),40.4(2C),14.3,12.1(2C);HRMS(ESI)calcd for C2428Na(M+Na) 431.1947.Found 431.1930;Anal.Calcd for C2428:C,70.57;H,6.91;N,6.86.Found:C,70.41;H,6.86;N,6.86.
<Synthesis of Compound 3d>
In the same manner as in the synthesis of Compound 3a, Compound 3d as a yellow solid was obtained from Compound 1 and Compound 2d in a yield of 66%.
Melting point: 166-168 ° C .; 1 H NMR (500 MHz, CDCl 3 )... 8.42 (s, 1H), 7.29 (d, J = 8.7 Hz, 2H), 7.24 (s, 1H ), 6.80 (s, 1H), 6.73 (d, J = 8.4 Hz, 2H), 4.36 (q, J = 7.1 Hz, 2H), 3.06 (q, J = 7) .1 Hz, 4H), 2.97 (s, 6H), 1.36 (t, J = 7.1 Hz, 3H), 0.96 (t, J = 7.1 Hz, 6H); 13 C NMR (125 MHz , CDCl 3 ) ... 163.9, 157.8, 155.9, 155.5, 149.6, 148.9, 132.2, 131.9, 128.7 (2C), 128.2 112.5 (2C), 112.3, 111.1, 105.6, 61.3, 45.5 (2C), 40.4 (2C), 14.3,12.1 (2C); HRMS (ESI ) calcd for C 24 H 28 N 2 O 4 Na (M + Na) + 431.1947. Found 431.1930; Anal. Calcd for C 24 H 28 N 2 O 4: C, 70.57; H, 6.91; N, 6.86. Found: C, 70.41; H, 6.86; N, 6.86.

<化合物3eの合成>
化合物3aの合成と同様の方法で、化合物1と化合物2eから、収率28%で黄色粉状物の化合物3eを得た。
融点:123−124℃;H NMR(500MHz,CDCl)・・・8.45(s,1H),8.28(d,J=8.8Hz,2H),7.64(d,J=8.8Hz,2H),7.33(s,1H),6.91(s,1H),4.38(q,J=7.1Hz,2H),3.03(q,J=7.1Hz,4H),1.38(t,J=7.2Hz,3H),0.98(t,J=7.1Hz,6H);13C NMR(125MHz,CDCl)・・・163.5,157.1,156.9,154.9,148.4,147.1,147.0,132.6,129.4,129.0(2C),124.2(2C),114.0,111.6,106.7,61.7,46.1(2C),14.3,11.9(2C);HRMS(ESI)calcd for C2222Na(M+Na) 433.1376.Found 433.1381;Anal.Calcd for C2222・1/4HO:C,63.68;H,5.47;N,6.75.Found:C,63.90;H,5.45;N,6.49.
<Synthesis of Compound 3e>
In the same manner as the synthesis of Compound 3a, Compound 3e as a yellow powder was obtained from Compound 1 and Compound 2e in a yield of 28%.
Melting point: 123-124 ° C .; 1 H NMR (500 MHz, CDCl 3 )... 8.45 (s, 1 H), 8.28 (d, J = 8.8 Hz, 2 H), 7.64 (d, J = 8.8 Hz, 2H), 7.33 (s, 1H), 6.91 (s, 1H), 4.38 (q, J = 7.1 Hz, 2H), 3.03 (q, J = 7) .1 Hz, 4H), 1.38 (t, J = 7.2 Hz, 3H), 0.98 (t, J = 7.1 Hz, 6H); 13 C NMR (125 MHz, CDCl 3 ). 5, 157.1, 156.9, 154.9, 148.4, 147.1, 147.0, 132.6, 129.4, 129.0 (2C), 124.2 (2C), 114. 0, 111.6, 106.7, 61.7, 46.1 (2C), 14.3, 11.9 (2C); HRMS (E SI) calcd for C 22 H 22 N 2 O 6 Na (M + Na) + 433.1376. Found 433.1381; Anal. Calcd for C 22 H 22 N 2 O 6 · 1 / 4H 2 O: C, 63.68; H, 5.47; N, 6.75. Found: C, 63.90; H, 5.45; N, 6.49.

<化合物3fの合成>
化合物3aの合成と同様の方法で、化合物1と化合物2fから、収率75%で黄色針状物の化合物3fを得た。
融点:112−113℃;H NMR(500MHz,CDCl)・・・8.44(s,1H),7.29(d,J=8.6Hz,2H),7.25(s,1H),6.88(d,J=8.6Hz,2H),6.84(s,1H),5,15(br s,1H),4.37(q,J=7.1Hz,2H),3.04(q,J=7.1Hz,4H),1.37(t,J=7.1Hz,3H),0.96(t,J=7.1Hz,6H);13C NMR(125MHz,CDCl)・・・163.9,158.1,156.2,155.5,155.4,149.1,132.6,132.5,131.5,129.4(2C),115.8(2C),112.3,111.1,105.6,61.5,45.6(2C),14.3,12.1(2C);HRMS(ESI)calcd for C2222NO(M−H) 380.1498.Found 380.1491;Anal.Calcd for C2223NO:C,69.28;H,6.08;N,3.67.Found:C,69.02;H,6.20;N,3.65.
<Synthesis of Compound 3f>
By a method similar to the synthesis of Compound 3a, Compound 3f as a yellow needle was obtained from Compound 1 and Compound 2f in a yield of 75%.
Melting point: 112-113 ° C .; 1 H NMR (500 MHz, CDCl 3 ) ... 8.44 (s, 1H), 7.29 (d, J = 8.6 Hz, 2H), 7.25 (s, 1H ), 6.88 (d, J = 8.6 Hz, 2H), 6.84 (s, 1H), 5, 15 (brs, 1H), 4.37 (q, J = 7.1 Hz, 2H) , 3.04 (q, J = 7.1 Hz, 4H), 1.37 (t, J = 7.1 Hz, 3H), 0.96 (t, J = 7.1 Hz, 6H); 13 C NMR ( 125 MHz, CDCl 3 ) ... 163.9, 158.1, 156.2, 155.5, 155.4, 149.1, 132.6, 132.5, 131.5, 129.4 (2C) 115.8 (2C), 112.3, 111.1, 105.6, 61.5, 45.6 (2C), 14.3, 1 .1 (2C); HRMS (ESI ) calcd for C 22 H 22 NO 5 (M-H) - 380.1498. Found 380.1491; Anal. Calcd for C 22 H 23 NO 5 : C, 69.28; H, 6.08; N, 3.67. Found: C, 69.02; H, 6.20; N, 3.65.

<化合物3gの合成>
化合物3aの合成と同様の方法で、化合物1と化合物2gから、収率63%で黄色針状物の化合物3gを得た。
融点:70−71℃;H NMR(500MHz,CDCl)・・・8.43(s,1H),7.35(d,J=8.8Hz,2H),7.26(s,1H),6.93(d,J=8.8Hz,2H),6.85(s,1H),4.37(q,J=7.1Hz,2H),3.84(s,3H),3.04(q,J=7.1Hz,4H),1.37(t,J=7.1Hz,3H),0.96(t,J=7.1Hz,6H);13C NMR(125MHz,CDCl)・・・163.8,159.0,157.6,156.2,155.1,148.8,132.7,132.5,131.4,129.3(2C),114.2(2C),112.9,111.3,106.0,61.5,55.3,45.8(2C),14.3,12.1(2C);HRMS(ESI)calcd for C2325NONa(M+Na) 418.1630.Found 418.1608rt;Anal.Calcd for C2325NO:C,69.86;H,6.37;N,3.54.Found:C, 69.62;H,6.40;N,3.54.
<Synthesis of Compound 3g>
By a method similar to the synthesis of Compound 3a, Compound 3g as a yellow needle was obtained from Compound 1 and Compound 2g in a yield of 63%.
Melting point: 70-71 ° C .; 1 H NMR (500 MHz, CDCl 3 )... 8.43 (s, 1H), 7.35 (d, J = 8.8 Hz, 2H), 7.26 (s, 1H) ), 6.93 (d, J = 8.8 Hz, 2H), 6.85 (s, 1H), 4.37 (q, J = 7.1 Hz, 2H), 3.84 (s, 3H), 3.04 (q, J = 7.1 Hz, 4H), 1.37 (t, J = 7.1 Hz, 3H), 0.96 (t, J = 7.1 Hz, 6H); 13 C NMR (125 MHz , CDCl 3 ) ... 163.8, 159.0, 157.6, 156.2, 155.1, 148.8, 132.7, 132.5, 131.4, 129.3 (2C), 114.2 (2C), 112.9, 111.3, 106.0, 61.5, 55.3, 45.8 (2C), 14.3, 1 2.1 (2C); HRMS (ESI ) calcd for C 23 H 25 NO 5 Na (M + Na) + 418.1630. Found 418.1608 rt; Anal. Calcd for C 23 H 25 NO 5 : C, 69.86; H, 6.37; N, 3.54. Found: C, 69.62; H, 6.40; N, 3.54.

<化合物3hの合成>
化合物3aの合成と同様の方法で、化合物1と化合物2hから、収率58%で黄色固体の化合物3hを得た。
融点:79−80℃;H NMR(500MHz,CDCl)・・・8.44(s,1H),8.00(d,J=8.4Hz,2H),7.55(d,J=8.4Hz,2H),7.30(s,1H),6.87(s,1H),4.37(q,J=7.1Hz,2H),3.02(q,J=7.1Hz,4H),2.62(s,3H),1.37(t,J=7.1Hz,3H),0.96(t,J=7.1Hz,6H);13C NMR(125MHz,CDCl)・・・197.4,163.6,157.3,156.7,155.0,148.6,145.4,136.0,132.6,130.4,128.9(2C),128.4(2C),113.4,111.3,106.2,61.6,45.9(2C),26.6,14.3,12.0(2C);HRMS(ESI)calcd for C2425NONa(M+Na) 430.1630.Found 430.1606;Anal.Calcd for C2425NO:C,70.74;H,6.18;N,3.44.Found:C,70.55;H,6.29;N,3.42.
<Synthesis of Compound 3h>
In the same manner as the synthesis of Compound 3a, Compound 3h as a yellow solid was obtained from Compound 1 and Compound 2h in a yield of 58%.
Melting point: 79-80 ° C .; 1 H NMR (500 MHz, CDCl 3 ) ... 8.44 (s, 1H), 8.00 (d, J = 8.4 Hz, 2H), 7.55 (d, J = 8.4 Hz, 2H), 7.30 (s, 1H), 6.87 (s, 1H), 4.37 (q, J = 7.1 Hz, 2H), 3.02 (q, J = 7) .1 Hz, 4H), 2.62 (s, 3H), 1.37 (t, J = 7.1 Hz, 3H), 0.96 (t, J = 7.1 Hz, 6H); 13 C NMR (125 MHz , CDCl 3 ) ... 197.4, 163.6, 157.3, 156.7, 155.0, 148.6, 145.4, 136.0, 132.6, 130.4, 128.9 (2C), 128.4 (2C), 113.4, 111.3, 106.2, 61.6, 45.9 (2C), 26.6 14.3,12.0 (2C); HRMS (ESI ) calcd for C 24 H 25 NO 5 Na (M + Na) + 430.1630. Found 430.1606; Anal. Calcd for C 24 H 25 NO 5 : C, 70.74; H, 6.18; N, 3.44. Found: C, 70.55; H, 6.29; N, 3.42.

<化合物3iの合成>
化合物3aの合成と同様の方法で、化合物1と化合物2iから、収率45%で黄色針状物の化合物3iを得た。
融点:174−176℃;H NMR(500MHz,CDCl)・・・8.44(s,1H),7.70(d,J=8.3Hz,2H),7.58(d,J=8.3Hz,2H),7.29(s,1H),6.89(s,1H),4.37(q,J=7.1Hz,2H),3.01(q,J=7.1Hz,4H),1.37(t,J=7.1Hz,3H),0.97(t,J=7.0Hz,6H);13C NMR(125MHz,CDCl)・・・163.5,157.2,156.8,154.9,148.5,145.2,132.6(2C),132.6,129.7,128.9(2C),118.6,113.7,111.5,111.2,106.5,61.6,45.9(2C),14.3,11.9(2C);HRMS(ESI)calcd for C2322Na(M+Na) 413.1477.Found 413.1462;Anal.Calcd for C2322:C,70.75;H,5.68;N,7.17.Found:C,70.61;H,5.75;N,6.99.
<Synthesis of Compound 3i>
In the same manner as the synthesis of compound 3a, yellow needle-like compound 3i was obtained from compound 1 and compound 2i in a yield of 45%.
Melting point: 174 to 176 ° C; 1 H NMR (500 MHz, CDCl 3 ) ... 8.44 (s, 1 H), 7.70 (d, J = 8.3 Hz, 2 H), 7.58 (d, J = 8.3 Hz, 2H), 7.29 (s, 1H), 6.89 (s, 1H), 4.37 (q, J = 7.1 Hz, 2H), 3.01 (q, J = 7) .1 Hz, 4H), 1.37 (t, J = 7.1 Hz, 3H), 0.97 (t, J = 7.0 Hz, 6H); 13 C NMR (125 MHz, CDCl 3 ). 5, 157.2, 156.8, 154.9, 148.5, 145.2, 132.6 (2C), 132.6, 129.7, 128.9 (2C), 118.6, 113. 7, 111.5, 111.2, 106.5, 61.6, 45.9 (2C), 14.3, 11.9 (2C); HRMS (ESI) calcd for C 23 H 22 N 2 O 4 Na (M + Na) + 413.1477. Found 413.1462; Anal. Calcd for C 23 H 22 N 2 O 4: C, 70.75; H, 5.68; N, 7.17. Found: C, 70.61; H, 5.75; N, 6.99.

<化合物3jの合成>
化合物3aの合成と同様の方法で、化合物1と化合物2jから、収率46%で黄色固体の化合物3jを得た。
融点:115−117℃;H NMR(500MHz,CDCl)・・・8.44(s,1H),8.07(d,J=8.2Hz,2H),7.52(d,J=8.3Hz,2H),7.31(s,1H),6.88(s,1H),4.37(q,J=7.1Hz,2H),3.93(s,3H),3.02(q,J=7.1Hz,4H),1.37(t,J=7.1Hz,3H),0.96(t,J=7.0Hz,6H);13C NMR(125MHz,CDCl)・・・166.7,163.6,157.3,156.6,155.0,148.6,145.2,132.6,130.4,130.1(2C),129.1,128.2(2C),113.2,111.2,106.0,61.5,52.1,45.8(2C),14.2,12.0(2C);HRMS(ESI)calcd for C2425NONa(M+Na) 446.1580.Found 446.1583;Anal.Calcd for C2425NO:C,68.07;H,5.95;N,3.31.Found:C,67.78;H,5.94;N,3.30.
<Synthesis of Compound 3j>
In the same manner as in the synthesis of Compound 3a, Compound 3j as a yellow solid was obtained from Compound 1 and Compound 2j in a yield of 46%.
Melting point: 115-117 ° C .; 1 H NMR (500 MHz, CDCl 3 ) ... 8.44 (s, 1H), 8.07 (d, J = 8.2 Hz, 2H), 7.52 (d, J = 8.3 Hz, 2H), 7.31 (s, 1H), 6.88 (s, 1H), 4.37 (q, J = 7.1 Hz, 2H), 3.93 (s, 3H), 3.02 (q, J = 7.1 Hz, 4H), 1.37 (t, J = 7.1 Hz, 3H), 0.96 (t, J = 7.0 Hz, 6H); 13 C NMR (125 MHz , CDCl 3 ) ... 166.7, 163.6, 157.3, 156.6, 155.0, 148.6, 145.2, 132.6, 130.4, 130.1 (2C), 129.1, 128.2 (2C), 113.2, 111.2, 106.0, 61.5, 52.1, 45.8 (2C ), 14.2,12.0 (2C); HRMS (ESI) calcd for C 24 H 25 NO 6 Na (M + Na) + 446.1580. Found 446.1583; Anal. Calcd for C 24 H 25 NO 6 : C, 68.07; H, 5.95; N, 3.31. Found: C, 67.78; H, 5.94; N, 3.30.

<化合物3kの合成>
化合物3aの合成と同様の方法で、化合物1と化合物2kから、収率63%で黄色固体の化合物3kを得た。
融点:121−123℃;H NMR(500MHz,CDCl)・・・8.44(s,1H),8.11(d,J=8.4Hz,2H),7.52(d,J=8.5Hz,2H),7.46(d,J=7.0Hz,2H),7.39(m,2H),7.34(m,1H),7.30(s,1H),6.86(s,1H),5.37(s,2H),4.37(q,J=7.1Hz,2H),3.01(q,J=7.1Hz,4H),1.37(t,J=7.1Hz,3H),0.95(t,J=7.1Hz,6H);13C NMR(125MHz,CDCl)・・・166.1,163.6,157.4,156.7,155.0,148.6,145.3,136.0,132.6,130.4,130.2(2C),129.1,128.6(2C),128.33,128.27(2C),128.2(2C),113.3,111.3,106.1,66.8,61.5,45.9(2C),14.3,12.0(2C);HRMS(ESI)calcd for C3029NONa(M+Na) 522.1893.Found 522.1888;Anal.Calcd for C3029NO・1/8HO:C,71.80;H,5.88;N,2.79.Found:C,71.70;H,6.01;N,2.81.
<Synthesis of Compound 3k>
In the same manner as the synthesis of Compound 3a, Compound 3k as a yellow solid was obtained from Compound 1 and Compound 2k in a yield of 63%.
Melting point: 121-123 ° C .; 1 H NMR (500 MHz, CDCl 3 ) ... 8.44 (s, 1H), 8.11 (d, J = 8.4 Hz, 2H), 7.52 (d, J = 8.5 Hz, 2H), 7.46 (d, J = 7.0 Hz, 2H), 7.39 (m, 2H), 7.34 (m, 1H), 7.30 (s, 1H), 6.86 (s, 1H), 5.37 (s, 2H), 4.37 (q, J = 7.1 Hz, 2H), 3.01 (q, J = 7.1 Hz, 4H), 1. 37 (t, J = 7.1 Hz, 3H), 0.95 (t, J = 7.1 Hz, 6H); 13 C NMR (125 MHz, CDCl 3 ) 166.1, 163.6, 157. 4, 156.7, 155.0, 148.6, 145.3, 136.0, 132.6, 130.4, 130.2 (2C), 129. 1, 128.6 (2C), 128.33, 128.27 (2C), 128.2 (2C), 113.3, 111.3, 106.1, 66.8, 61.5, 45.9 (2C), 14.3,12.0 (2C) ; HRMS (ESI) calcd for C 30 H 29 NO 6 Na (M + Na) + 522.1893. Found 522.1888; Anal. Calcd for C 30 H 29 NO 6 · 1 / 8H 2 O: C, 71.80; H, 5.88; N, 2.79. Found: C, 71.70; H, 6.01; N, 2.81.

<化合物3lの合成>
化合物3aの合成と同様の方法で、化合物1と化合物2lから、収率62%で黄色粉状物の化合物3lを得た。
融点:187−188℃;H NMR(500MHz,CDCl)・・・8.44(s,1H),8.23(d,J=2.1Hz,1H),7.52(dd,J=8.6,2.1Hz,1H),7.31(s,1H),6.89(s,1H),6.86(d,J=8.6Hz,1H),6.21(br s,2H),4.37(q,J=7.2Hz,2H),3.06(q,J=7.1Hz,4H),1.37(t,J=7.1Hz,3H),0.99(t,J=7.1Hz,6H);13C NMR(125MHz,CDCl)・・・163.5,157.4,156.2,155.2,148.6,144.0,135.8,132.1,132.1,129.8,128.9,125.0,119.2,113.3,111.7,106.7,61.5,45.6(2C),14.2,11.9(2C);HRMS(ESI)calcd for C2222(M−H) 424.1509.Found 424.1513;Anal.Calcd for C2223:C,62.11;H,5.45;N,9.88.Found:C,62.02;H,5.65;N,9.76.
<Synthesis of Compound 3l>
By a method similar to the synthesis of compound 3a, yellow powdery compound 3l was obtained from compound 1 and compound 21 in a yield of 62%.
Melting point: 187-188 ° C; 1 H NMR (500 MHz, CDCl 3 ) ... 8.44 (s, 1 H), 8.23 (d, J = 2.1 Hz, 1 H), 7.52 (dd, J = 8.6, 2.1 Hz, 1H), 7.31 (s, 1H), 6.89 (s, 1H), 6.86 (d, J = 8.6 Hz, 1H), 6.21 (br s, 2H), 4.37 (q, J = 7.2 Hz, 2H), 3.06 (q, J = 7.1 Hz, 4H), 1.37 (t, J = 7.1 Hz, 3H), 0.99 (t, J = 7.1 Hz, 6H); 13 C NMR (125 MHz, CDCl 3 ) 163.5, 157.4, 156.2, 155.2, 148.6, 144.0 135.8, 132.1, 132.1, 129.8, 128.9, 125.0, 119.2, 113.3, 111. , 106.7,61.5,45.6 (2C), 14.2,11.9 ( 2C); HRMS (ESI) calcd for C 22 H 22 N 3 O 6 (M-H) - 424.1509 . Found 424.1513; Anal. Calcd for C 22 H 23 N 3 O 6: C, 62.11; H, 5.45; N, 9.88. Found: C, 62.02; H, 5.65; N, 9.76.

<化合物3mの合成>
化合物3k(110.4mg,0.221mmol)をメタノール:テトラヒドロフラン(2:1)3mLに溶かし、10%Pd/C(パラジウム炭素、17.0mg)を室温下で加え、水素雰囲気下で40分間撹拌した。反応液をろ過後、カラムクロマトグラフィーにて精製し、黄色粉状物の化合物3m(66.0mg,73%)を得た。
融点:249−250℃;H NMR(500MHz,CDCl)・・・11.06(br s,1H),8.46(s,1H),8.15(d,J=8.3Hz,2H),7.56(d,J=8.3Hz,2H),7.33(s,1H),6.86(s,1H),4.36(q,J=7.1Hz,2H),3.03(q,J=7.1Hz,4H),1.36(t,J=7.1Hz,3H),0.96(t,J=7.1Hz,6H);13C NMR(125MHz,CDCl)・・・170.9,163.6,157.4,156.7,154.9,148.6,146.1,132.7,130.8(2C),130.3,128.4(2C),128.1,113.4,111.4,106.2,61.6,46.0(2C),14.3,12.0(2C);HRMS(ESI)calcd for C2322NO(M−H) 408.1447.Found 408.1450;Anal.Calcd for C2323NO・1/4HO:C,66.74;H,5.72;N,3.38.Found:C,66.98;H,5.76;N,3.35.
<Synthesis of Compound 3m>
Compound 3k (110.4 mg, 0.221 mmol) was dissolved in 3 mL of methanol: tetrahydrofuran (2: 1), 10% Pd / C (palladium carbon, 17.0 mg) was added at room temperature, and the mixture was stirred under a hydrogen atmosphere for 40 minutes. did. The reaction solution was filtered and then purified by column chromatography to obtain a yellow powdery compound 3m (66.0 mg, 73%).
Melting point: 249-250 ° C .; 1 H NMR (500 MHz, CDCl 3 )... 11.06 (br s, 1 H), 8.46 (s, 1 H), 8.15 (d, J = 8.3 Hz, 2H), 7.56 (d, J = 8.3 Hz, 2H), 7.33 (s, 1H), 6.86 (s, 1H), 4.36 (q, J = 7.1 Hz, 2H) , 3.03 (q, J = 7.1 Hz, 4H), 1.36 (t, J = 7.1 Hz, 3H), 0.96 (t, J = 7.1 Hz, 6H); 13 C NMR ( 125 MHz, CDCl 3 )... 170.9, 163.6, 157.4, 156.7, 154.9, 148.6, 146.1, 132.7, 130.8 (2C), 130.3 , 128.4 (2C), 128.1, 113.4, 111.4, 106.2, 61.6, 46.0 (2C). 14.3,12.0 (2C); HRMS (ESI ) calcd for C 23 H 22 NO 6 (M-H) - 408.1447. Found 408.1450; Anal. Calcd for C 23 H 23 NO 6 · 1 / 4H 2 O: C, 66.74; H, 5.72; N, 3.38. Found: C, 66.98; H, 5.76; N, 3.35.

<化合物3nの合成>
化合物3l(120.9mg,0.284mmol)を2.5mLのメタノールに溶かし、10%Pd/C(パラジウム炭素、39.1mg)を室温下で加え、水素雰囲気下で2時間撹拌した。反応液をろ過後、カラムクロマトグラフィーにて精製し、黄色粉状物の化合物3n(72.5mg,65%)を得た。
融点:185−186℃;H NMR(500MHz,CDCl)・・・8.41(s,1H),7.23(s,1H),6.82−6.75(m,4H),4.36(q,J=7.1Hz,2H),3.68(br s,4H),3.07(q,J=7.1Hz,4H),1.37(t,J=7.1Hz,3H),0.96(t,J=7.1Hz,6H);13C NMR(125MHz,CDCl)・・・163.9,157.9,156.1,155.3,149.0,134.7,134.0,132.5,132.4,131.5,120.0,116.9,116.4,112.0,110.8,105.2,61.3,45.5(2C),14.2,12.1(2C);HRMS(ESI)calcd for C2224(M−H) 394.1767.Found 394.1760;Anal.Calcd for C2225・1/4HO:C,66.07;H,6.43;N,10.51.Found:C,66.01;H,6.27;N,10.44.
<Synthesis of Compound 3n>
Compound 31 (120.9 mg, 0.284 mmol) was dissolved in 2.5 mL of methanol, 10% Pd / C (palladium on carbon, 39.1 mg) was added at room temperature, and the mixture was stirred under a hydrogen atmosphere for 2 hours. The reaction solution was filtered and purified by column chromatography to obtain yellow powdery compound 3n (72.5 mg, 65%).
Melting point: 185-186 ° C; 1 H NMR (500 MHz, CDCl 3 ) ... 8.41 (s, 1 H), 7.23 (s, 1 H), 6.82-6.75 (m, 4 H), 4.36 (q, J = 7.1 Hz, 2H), 3.68 (br s, 4H), 3.07 (q, J = 7.1 Hz, 4H), 1.37 (t, J = 7. 1 Hz, 3H), 0.96 (t, J = 7.1 Hz, 6H); 13 C NMR (125 MHz, CDCl 3 )... 163.9, 157.9, 156.1, 155.3, 149. 0, 134.7, 134.0, 132.5, 132.4, 131.5, 120.0, 116.9, 116.4, 112.0, 110.8, 105.2, 61.3, 45.5 (2C), 14.2,12.1 (2C ); HRMS (ESI) calcd for C 22 24 N 3 O 4 (M- H) - 394.1767. Found 394. 1760; Anal. Calcd for C 22 H 25 N 3 O 4 · 1 / 4H 2 O: C, 66.07; H, 6.43; N, 10.51. Found: C, 66.01; H, 6.27; N, 10.44.

<化合物3oの合成>
化合物3n(47.8mg,0.131mmol)をメタノール:水(1:4)2mLに溶かし、酢酸(0.2ml)、亜硝酸ナトリウム(21.4mg,0.310mmol)を室温下で加えた。5分間撹拌後、反応液を酢酸エチルで希釈し、有機層を水、飽和食塩水で洗浄した。溶媒を留去後、カラムクロマトグラフィーにて精製し、黄色粉状物の化合物3o(50.2mg,94%)を得た。
融点:232−233℃;H NMR(500MHz,CDCl)・・・8.51(s,1H),8.02(s,1H),7.98(d,J=8.6Hz,1H),7.55(dd,J=8.6,1.0Hz,1H),7.41(s,1H),6.91(s,1H),4.38(q,J=7.1Hz,2H),3.05(q,J=7.1Hz,4H),1.36(t,J=7.1Hz,3H),0.96(t,J=7.0Hz,6H);13C NMR(125MHz,CDCl)・・・163.7,158.1,156.5,155.2,149.0,139.3,138.4,138.3,133.4,131.1,127.0,115.5,114.1,112.5,111.4,106.0,61.7,52.2,46.0(2C),14.3,12.1(2C);HRMS(ESI)calcd for C2221(M−H) 405.1563.Found 405.1564;Anal.Calcd for C2222:C,65.01;H,5.46;N,13.78.Found:C,64.72;H,5.60;N,13.68.
<Synthesis of Compound 3o>
Compound 3n (47.8 mg, 0.131 mmol) was dissolved in 2 mL of methanol: water (1: 4), and acetic acid (0.2 ml) and sodium nitrite (21.4 mg, 0.310 mmol) were added at room temperature. After stirring for 5 minutes, the reaction solution was diluted with ethyl acetate, and the organic layer was washed with water and saturated brine. After the solvent was distilled off, the residue was purified by column chromatography to obtain a yellow powdery compound 3o (50.2 mg, 94%).
Melting point: 232-233 ° C .; 1 H NMR (500 MHz, CDCl 3 )... 8.51 (s, 1 H), 8.02 (s, 1 H), 7.98 (d, J = 8.6 Hz, 1 H) ), 7.55 (dd, J = 8.6, 1.0 Hz, 1H), 7.41 (s, 1H), 6.91 (s, 1H), 4.38 (q, J = 7.1 Hz) , 2H), 3.05 (q, J = 7.1Hz, 4H), 1.36 (t, J = 7.1Hz, 3H), 0.96 (t, J = 7.0Hz, 6H); 13 C NMR (125 MHz, CDCl 3 ) ... 163.7, 158.1, 156.5, 155.2, 149.0, 139.3, 138.4, 138.3, 133.4, 131.1 , 127.0, 115.5, 114.1, 112.5, 111.4, 106.0, 61.7, 52.2, 46.0 (2C), 14.3,12.1 (2C) ; HRMS (ESI) calcd for C 22 H 21 N 4 O 4 (M-H) - 405.1563. Found 405.5644; Anal. Calcd for C 22 H 22 N 4 O 4: C, 65.01; H, 5.46; N, 13.78. Found: C, 64.72; H, 5.60; N, 13.68.

(実施例2:各化合物の機能性確認)
実施例2では、前記実施例1で合成した本発明の化合物(化合物3a〜3o)の蛍光特性を検討し、各化合物が種々の機能性を有した蛍光物質であることを確認した。
(Example 2: Functional confirmation of each compound)
In Example 2, the fluorescence characteristics of the compounds of the present invention (compounds 3a to 3o) synthesized in Example 1 were examined, and it was confirmed that each compound was a fluorescent substance having various functions.

(1)蛍光センサー分子としての機能(特定の分子種を検出する機能)
水溶液(1mM リン酸バッファー(pH7.4))中での、各化合物3μMの励起波長420nmにおける蛍光スペクトルを、分光蛍光光度計(日本分光株式会社製、FP−6600)を用いて測定した。
(1) Function as a fluorescent sensor molecule (function to detect specific molecular species)
The fluorescence spectrum of each compound 3 μM at an excitation wavelength of 420 nm in an aqueous solution (1 mM phosphate buffer (pH 7.4)) was measured using a spectrofluorometer (manufactured by JASCO Corporation, FP-6600).

結果の一部を図2に示す。化合物3a〜3oは、それぞれの構造の違いに応じて蛍光特性が異なり、したがって、本発明の化合物は例えば以下のような用途に好適であることが示された。
化合物3cから3bへの変換は、アミド基からアミノ基への変換であり、変換により全く無蛍光の状態になる(図2(i))。こうした反応は、例えば生体内に存在するペプチダーゼの検出に適用することができる。
化合物3nから3oへの変換は、ジアミノ基からトリアゾールへの変換であり、変換により全くの無蛍光の状態から、蛍光を持つようになる(図2(ii))。こうした反応は、例えば生体内において血管収縮などを担う生理活性物質である一酸化窒素の検出に適用することができる。
化合物3gから3fへの変換は、メトキシ基から水酸基への変換であり、変換により蛍光強度が約5分の1に減少する(図2(iii))。こうした反応は、例えば生体内の脱アルキル化酵素やグリコシダーゼの検出に適用できると考えられる。
A part of the results is shown in FIG. The compounds 3a to 3o have different fluorescence characteristics depending on the difference in structure, and thus the compounds of the present invention have been shown to be suitable for the following uses, for example.
The conversion from compound 3c to 3b is a conversion from an amide group to an amino group, and the conversion results in a completely non-fluorescent state (FIG. 2 (i)). Such a reaction can be applied to, for example, detection of peptidases present in a living body.
The conversion from the compound 3n to 3o is conversion from a diamino group to triazole, and the fluorescence is obtained from the completely non-fluorescent state by the conversion (FIG. 2 (ii)). Such a reaction can be applied to, for example, detection of nitric oxide which is a physiologically active substance responsible for vasoconstriction in a living body.
The conversion from compound 3g to 3f is a conversion from a methoxy group to a hydroxyl group, and the fluorescence intensity is reduced to about 1/5 by the conversion (FIG. 2 (iii)). Such a reaction is considered to be applicable to, for example, detection of dealkylating enzymes and glycosidases in vivo.

(2)環境応答型蛍光分子としての機能(溶液の脂溶性の高さを検出する機能)
水溶液(1mM リン酸バッファー、pH7.4)中、メタノール中、アセトニトリル中、又は塩化メチレン中での各化合物3a〜3oの蛍光強度(FI)は、個々の化合物が最も強い蛍光強度を持つ励起波長、蛍光波長における蛍光強度を、分光蛍光光度計(日本分光株式会社製、FP−6600)を用いて測定した。(なお、用いた溶媒の脂溶性の高さは、「塩化メチレン」>「アセトニトリル」>「メタノール」>「水溶液」の順である。)
(2) Function as an environmentally responsive fluorescent molecule (function to detect the high lipid solubility of a solution)
The fluorescence intensity (FI) of each compound 3a to 3o in aqueous solution (1 mM phosphate buffer, pH 7.4), methanol, acetonitrile, or methylene chloride is the excitation wavelength at which each compound has the strongest fluorescence intensity. The fluorescence intensity at the fluorescence wavelength was measured using a spectrofluorometer (manufactured by JASCO Corporation, FP-6600). (In addition, the high lipophilicity of the solvent used is in the order of “methylene chloride”>“acetonitrile”>“methanol”> “aqueous solution”.)

結果を表1に示す。ほとんどの化合物が脂溶性の高い溶媒になるのに伴い蛍光強度が増大した。また、その変化量は個々の化合物で異なっていた。特に、化合物3f及び化合物3hでは、水溶液中と塩化メチレン中で比較すると、200倍以上の蛍光強度の増大が起こっていた。
これらの結果から、本発明の化合物が、溶液の脂溶性の高さを検出する用途に好適であることが示された。
The results are shown in Table 1. As most of the compounds became highly lipid-soluble solvents, the fluorescence intensity increased. The amount of change was different for each compound. In particular, in Compound 3f and Compound 3h, the fluorescence intensity increased by a factor of 200 or more when compared in aqueous solution and methylene chloride.
From these results, it was shown that the compound of this invention is suitable for the use which detects the high lipid solubility of a solution.

本発明の化合物は蛍光性を有する新規クマリン誘導体であり、その蛍光性を利用して種々の用途に好適に利用可能である。例えば、前記化合物は、イオン、小分子、酵素等の特定の分子種の検出や、溶液の脂溶性の高さの検出等に好適に利用可能である。   The compound of the present invention is a novel coumarin derivative having fluorescence, and can be suitably used for various applications by utilizing the fluorescence. For example, the compound can be suitably used for the detection of specific molecular species such as ions, small molecules, enzymes, etc., the detection of the lipid solubility of a solution, and the like.

図1は、本発明者らが実施した蛍光物質ライブラリーの構築方法を示す概念図である。FIG. 1 is a conceptual diagram showing a method for constructing a fluorescent substance library implemented by the present inventors. 図2は、水溶液(1mM リン酸バッファー(pH7.4)中での各化合物の蛍光スペクトルを示した図である。FIG. 2 is a diagram showing the fluorescence spectrum of each compound in an aqueous solution (1 mM phosphate buffer (pH 7.4)).

Claims (6)

下記一般式(1)で表されることを特徴とする化合物。
〔一般式(1)中、Rは水素又はCOORを示し;Rは水素、CH、CF又はCHCOORを示し;XはOR又はNRを示し;R、R及びRはそれぞれ独立に水素、又は下記一般式(2):
で表されるいずれかを示し;YはR、OR、NR、NO、COOR又はCNを示し、或いはYはそれが結合するベンゼン環の隣接する2つの炭素と共に複素環を形成していてもよく;Rは水素、置換基を有していてもよいCH、C又はC(=O)CHを示し;Rは水素、置換基を有していてもよいCH、C又はC(=O)CHを示す。〕
A compound represented by the following general formula (1):
[In General Formula (1), R 1 represents hydrogen or COOR 6 ; R 2 represents hydrogen, CH 3 , CF 3 or CH 2 COOR 6 ; X represents OR 6 or NR 6 R 7 ; R 3 , R 4 and R 5 are each independently hydrogen or the following general formula (2):
Y represents R 6 , OR 6 , NR 6 R 7 , NO 2 , COOR 6 or CN, or Y represents a heterocycle with two adjacent carbons of the benzene ring to which it is bonded. R 6 represents hydrogen, optionally substituted CH 3 , C 2 H 5 or C (═O) CH 3 ; R 7 represents hydrogen, substituted CH 3 , C 2 H 5 or C (═O) CH 3 that may be present is shown. ]
下記構造式(3a)〜(3o)の少なくともいずれかで表される請求項1に記載の化合物。
〔構造式(3a)〜(3o)中、Arはそれぞれ下記の構造:
を示す。〕
The compound of Claim 1 represented by at least any one of following structural formula (3a)-(3o).
[In the structural formulas (3a) to (3o), Ar represents the following structures:
Indicates. ]
請求項1から2のいずれかに記載の化合物を1種以上含むことを特徴とする特定の分子種の検出剤。   A detection agent for a specific molecular species, comprising one or more compounds according to any one of claims 1 to 2. 請求項1から2のいずれかに記載の化合物を1種以上用いることを特徴とする特定の分子種の検出方法。   A method for detecting a specific molecular species, comprising using one or more compounds according to claim 1. 請求項1から2のいずれかに記載の化合物を1種以上含むことを特徴とする溶液の脂溶性の高さの検出剤。   A detection agent for detecting the high fat solubility of a solution, comprising at least one compound according to claim 1. 請求項1から2のいずれかに記載の化合物を1種以上用いることを特徴とする溶液の脂溶性の高さの検出方法。   A method for detecting the high fat solubility of a solution, comprising using one or more compounds according to claim 1.
JP2007043878A 2007-02-23 2007-02-23 Coumarin derivatives and their uses Pending JP2008208039A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103435603A (en) * 2013-08-22 2013-12-11 贵州大学 Coumarin-oxacalix[3]arene fluorescent reagents as well as preparation method and application thereof
WO2020039708A1 (en) 2018-08-23 2020-02-27 国立大学法人九州大学 Organic electroluminescence element
CN117343201A (en) * 2023-08-21 2024-01-05 中国科学院宁波材料技术与工程研究所 A multifunctional cellulose-based fluorescent material and its preparation method and application

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103435603A (en) * 2013-08-22 2013-12-11 贵州大学 Coumarin-oxacalix[3]arene fluorescent reagents as well as preparation method and application thereof
WO2020039708A1 (en) 2018-08-23 2020-02-27 国立大学法人九州大学 Organic electroluminescence element
CN117343201A (en) * 2023-08-21 2024-01-05 中国科学院宁波材料技术与工程研究所 A multifunctional cellulose-based fluorescent material and its preparation method and application

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