WO2000008047A1 - Depsipeptide derivatives bearing piperazinone rings - Google Patents
Depsipeptide derivatives bearing piperazinone rings Download PDFInfo
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- WO2000008047A1 WO2000008047A1 PCT/JP1999/004205 JP9904205W WO0008047A1 WO 2000008047 A1 WO2000008047 A1 WO 2000008047A1 JP 9904205 W JP9904205 W JP 9904205W WO 0008047 A1 WO0008047 A1 WO 0008047A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
- C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
- C07K5/06—Dipeptides
- C07K5/06139—Dipeptides with the first amino acid being heterocyclic
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
- C07K5/02—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing at least one abnormal peptide link
- C07K5/0207—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing at least one abnormal peptide link containing the structure -NH-(X)4-C(=0), e.g. 'isosters', replacing two amino acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
Definitions
- the present invention relates to a novel depsipeptide derivative having a piperazinone ring in a molecule and a drug containing the same as an active ingredient.
- the depsipeptide derivative containing a piperazinone ring of the present invention has an apolipoprotein E production promoting effect, and is useful as a therapeutic drug for hyperlipidemia, a therapeutic drug for nerve damage and a therapeutic drug for dementia.
- apolipoprotein E As reported, increasing plasma apolipoprotein E levels is associated with hyperlipidemia, especially in familial hypercholesterolemia homozygotes that have been considered difficult to treat with conventional drugs. It is extremely effective as a treatment. In addition, cerebral circulation metabolism improving drugs are mainly used as therapeutic drugs for senile dementia, but these drugs do not improve the central nervous system which is considered to be the cause of senile dementia. No effect. On the other hand, it has been reported that apolipoprotein E is expressed at high levels in damaged and recovering nervous system parts (for example, M. JT.Ignatius et al., Proc. Natl. Acad. Sci. USA, 83: 1125 (1986)), suggesting that it may play an important role in nervous system repair.
- mice with apolipoprotein E deficiency showed a selective loss of the central nervous system, which was observed in neurodegenerative diseases such as Alzheimer's and Parkinson's disease.
- Apolipoprotein E is very similar to selective shedding (see S. Chapman and DM Michaelson, J. Neurochem., Vol. 7, No. 2, p. 708-714 (1998)). May play an essential role in maintaining the central nervous system.
- apolipoprotein E is expressed in vivo in the nervous system. It plays a role as a neurotrophic factor in maintaining and repairing neurons, and has been suggested to be useful in the treatment of neurodegenerative diseases in humans (E. Masliah et. A., Brain Res. 751, pp. 307-314 (1997)).
- drugs that increase plasma apolipoprotein E concentration can be used as a treatment for hyperlipidemia, especially for familial hypercholesterolemia homozygotes, which have been considered difficult to treat with conventional drugs. It is being sought.
- a new type of senile dementia a drug that promotes the repair and growth of the nervous system and suppresses the breakdown of the central nervous system. By doing so, it is conceivable that such an effect would be exhibited.
- the present inventors have conducted intensive studies to provide a drug that promotes the production of apolipoprotein E.
- a debpeptide derivative having a specific structure has the ability to have these effects.
- the present invention has been completed.
- the present invention provides the following general formula (I)
- R represents a C 5 -C 20 alkyl or C 5 -C, 5 alkoxy C, -C 4 ⁇ alkyl group
- R 2 to R 5 represents a hydrogen atom or a C, -C 6 alkyl group
- A is the following equation (2), equation (3) or equation (4)
- R 6 , R 12 , R 14 and R 15 represent a hydrogen atom or a C 1 -C 6 alkyl group
- R 7 , R 9 and RH represent (CH 2 ) ml- COOH (where: represents an integer of !!-3) or ( CH 2 ) nl — represents CON H 2 (where n, represents 2 or 3)
- R 8 and R 13 represent a hydrogen atom or an amine protecting group commonly used in peptide chemistry
- R 10 represents a hydrogen atom , ⁇ C 6 alkyl group, carboxyl group or C i Ce alkoxycarbonyl
- B is a carboxyl group, Ci Ce alkoxycarbonyl or formula (5)
- R 16 is (CH 2 ) m2 — COOH (where m 2 is an integer of 1 to 3) or (CH 2 ) n2 -CONH 2 (where n 2 is 2 or 3)
- R , 7 represent a hydrogen atom, a C, -C fi alkyl group, a carboxyl group or a C, -C 6 alkoxycarbonyl).
- the present invention provides the following formula (1 ′)
- R 7 is (CH 2) ml -COOH (in this case, an integer of 1-3) or (CH 2) nl - Represents CON H 2 (where n, represents 2 or 3), and R 8 represents a hydrogen atom or a protecting group for amines commonly used in peptide chemistry.
- B ′ represents a carboxyl group or C i Ce alkoxycarbonyl.
- the present invention provides a compound of formula (1 ")
- R 9 represents (CH 2 ) ml -COOH (here, represents an integer of 1 to 3) or (CH 2 ) nl -CONH 2 (where n, represents 2 or 3)
- R 10 represents a hydrogen atom, J! ⁇ ⁇ Alkyl group, carboxyl group or Ci Ce alkoxycarbonyl
- carboxyl group in A 'and B' described above may be protected by a protecting group usually used in peptide chemistry.
- alkynole group and the alkoxyl group are linear or branched, and C 5 to C 2 .
- Alkyl groups include, for example, pentyl, isopentyl, t-pentynole, 1-methylbutynole, hexinole, isohexyl, heptyl, neopentyl, 1 Includes monomethylheptyl, octyl, nonyl, decyl, pendecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, otatadecyl, nonadecyl, eicosyl and the like.
- C 1 C 6 alkyl groups include, for example, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, t-butyl, n-pentyl, n-xyl, etc.
- C t C 6 alkoxycarbonyl is For example, methoxycarbonyl, ethoxycarbonyl, t-butoxycarbonyl and the like are included. Of the scale 1.
- Arukokishi ⁇ 1-0 alkyl is, for example, pentyl Ruo carboxymethyl, hexyl O carboxymethyl, peptidase Ruokishimechiru, O lipped Ruo carboxymethyl, Noel O carboxymethyl, deci two Ruoki Shimechiru, Undeshiniru Oxymethyl, tridecinyloxymethyl, tetradecinyloxymethinole, pentadecininoleoxymethinole, pentinoleoxyshettinole, hexyloxexetil, heptyloxexetyl, otacilloche Chill, noni-loxoshetyl, desiniroxyshetyl, pendeciniroxhetyl, tridecinyloxhetyl, tetradecinyloxhetyl, pentadecinyloxyshetyl, pentinolexoxypropyl, Hexyloxypropyl,
- the protecting group for the amine and the protecting group for the carboxyl group used in the depsipeptide derivative having a piperazinone ring represented by the general formula (1) of the present invention are described in Nobuo Izumiya et al., "Basic and Experimental Peptide Synthesis” (Maruzen Co., Ltd. 1 985).
- Protecting groups for amines include t-butoxycarbonyl (hereinafter, referred to as “Boc”), benzyloxycarbonyl (hereinafter, referred to as “Cbz”), p-methoxybenzyloxycanolevonyl, —Fluorenyl methoxy canoleponyl (hereinafter referred to as “Fmo c” group, p-nitrobenzyloxycarbonyl group, isovonolenyloxycarbonyl group, p-biphenylisopropyloxycarbonyl group,
- carboxyl-protecting group examples include esters, for example, benzyl ester (benzyloxy group; hereinafter, referred to as “OB z 1”), tertiary butyl ester (t-butoxy group; hereinafter, referred to as “Ot Bu”), Methinole ester, ethyl ester, phenacyl ester (phenacyloxy group; hereafter referred to as “OPac”), trichlorethylenoesteneol, p-nitrobenzinoestenol, dipheninolemethynolestenolle, Vence 'Hydrinolestenol, p-methoxybenzinolestenol, 4-picolinolester, cyclohexyl esters, etc. are preferred, with OBz1, OtBu and OPac being preferred.
- B ' is preferably a carboxyl group.
- the present invention relates to a depsipeptide derivative containing a piperazinone ring represented by the general formula (1) and the formulas (1 ′) to (1 ⁇ ⁇ ⁇ ⁇ ) in a preferred embodiment or a pharmacologically acceptable salt thereof. It relates to a medicine as an active ingredient.
- the present invention relates to a depsipeptide derivative containing a piperazinone ring represented by the general formula (1) and the formulas (1 ′) to (1 () in a preferred embodiment, or a pharmacologically active derivative thereof.
- Apolipopin tin E production promoter containing a salt acceptable to the skin as an active ingredient, a therapeutic agent for nerve damage, a therapeutic agent for dementia, and high fat
- the present invention relates to a therapeutic agent for bloodemia.
- the piperazinone ring-containing debupeptide derivative or a pharmacologically acceptable salt thereof of the present invention can be prepared by a method generally used in peptide synthesis, for example, Nobuo Izumiya et al. ) Manufactured using the condensing agent method, azide method, chloride method, acid anhydride method, mixed acid anhydride method, active ester method, oxidation-reduction method, enzymatic method, etc. be able to.
- the debupeptide derivative containing a piperazinone ring of the present invention or a pharmaceutically acceptable salt thereof is
- R has the same meaning as described above
- having a carboxyl group having an ester bond with a protecting group and then the N-terminus or C-terminus is added to the hydroxyl group of the 3-hydroxycarboxylic acid.
- the protected carboxyl group such as an aminocarboxylic acid is condensed by a conventional method, and then the N-terminal or C-terminal of the protecting group such as an aminocarboxylic acid is deprotected, and then a desired piperazinone ring is obtained according to a conventional method of peptide synthesis.
- the protecting group of the carboxyl group of 3-hydroxycarboxylic acid may be deprotected and further condensed with a piperazinone ring.
- 3-hydroxycarboxylic acid carboxyl groups and piperazinone rings or and C after a -C 6 alcohol condensation by a conventional method, 3-hydroxycarboxylic hydroxyl groups of the carboxylic acid N- or C- After condensing a carboxyl group of a terminal-protected aminocarbonic acid or the like by a conventional method, and then deprotecting the N-terminal or C-terminal of the protecting group of the aminocarboxylic acid, a desired method is followed according to a conventional method of peptide synthesis.
- condensation with an aminocarboxylic acid containing a piperazinone ring By condensation with an aminocarboxylic acid containing a piperazinone ring.
- the required amino acid is previously condensed with the above-mentioned aminocarboxylic acid and then bonded to the hydroxyl group or carboxyl group of the above 3-hydroxycarboxylic acid via an ester bond or an amide bond.
- the above-mentioned protection of the carboxyl group of 3-hydroxycarboxylic acid can be carried out in a solvent such as ether or methanol under ice-cooling and then at room temperature with a methyl esterification reaction with diazomethane or dimethylformamide (hereinafter referred to as “Benzylesterification in a solvent such as DMF) or dimethyl sulfoxide (hereinafter referred to as “DMSO”) in the presence of a basic substance such as triethylamine in the presence of a basic substance such as triethylamine in a solvent such as benzyl ester.
- a solvent such as ether or methanol under ice-cooling and then at room temperature with a methyl esterification reaction with diazomethane or dimethylformamide (hereinafter referred to as “Benzylesterification in a solvent such as DMF) or dimethyl sulfoxide (hereinafter referred to as “DMSO”) in the presence of a basic substance such as
- Condensation of aminocarboxylic acid to hydroxyl group of carboxyl-protected compound is carried out using ether, acetone, chloroform, dichloromethane, ethyl acetate, DMF, tetrahydrofuran (hereinafter “THF”), acetonitrile, DMSO, etc.
- N, N dicyclohexynolecarbodiimide as a condensing reagent in a solvent under ice-cooling or room temperature, preferably in the presence of an acylation catalyst such as dimethylaminoviridine (hereinafter referred to as “DMAP”).
- DC CJ 1-ethyl 3- (3'-dimethylaminopropyl) carbodiimid hydrochloride, that is, water-soluble carbodiimide
- WS CI water-soluble carbodiimide
- 3-hydroxycarboxylic acid used as a starting material of the piperazinone ring-containing debutiptide derivative of the present invention include 3-hydroxycaprylic acid, 3-hydroxypelargonic acid, 3-hydroxycapric acid, and 3-hydroxylauric acid.
- These 3-hydroxycarboxylic acids can be used in the R-form or S-form of the optically active form and in the racemic form, but R and are C 5 to C 2 .
- R and are C 5 to C 2 .
- an alkyl group it is preferable to use an R-isomer, wherein 1 ⁇ is C 5 to C 15 alkoxy.
- additives commonly used to suppress racemization such as N-hydroxysuccinimide, 1-hydroxybenzotriazole (hereinafter referred to as ⁇ ⁇ ), ⁇ -hydroxy-5-norbonene-2 , 3-Dicarbodiimidbenzotriazole or 1-hydroxy 7-azabenzotriazole (hereinafter referred to as “HOAt”) is also preferred.
- the main condensing agent used in the azide method includes diphenylphosphoric acid azide.
- the various protecting groups described above can be used.
- the elimination reaction of the protecting group in the production process of the depipeptide derivative containing a piperazinone ring of the present invention is required to be able to remove the protecting group without affecting the peptide bond.
- the elimination reaction may be appropriately selected depending on the type of.
- As the solvent used for the above-mentioned peptide synthesis for example, chloroform, dichloromethane, ethyl acetate, DMF, DMSO, pyridine, dioxane, THF, dimethoxetane, acetonitrile, or a mixture of two or more of these may be used. This condensation reaction is carried out at a temperature in the range of about -20 to 50 ° C.
- peptide synthesis can be produced by either the liquid phase method or the solid phase method, and furthermore, the force ram method or the batch method can be used.
- the thus-prepared debpeptide derivative containing a piperazinone ring of the present invention is a compound in the form of a salt, it can be converted to a compound in a free form.
- the debpeptide derivative containing a piperazinone ring is a compound in a free form, it can be converted to a compound in the form of a pharmacologically acceptable salt thereof.
- a salt with a pharmacologically acceptable inorganic base such as a sodium salt, A potassium salt, a canoleum salt, an ammonium salt, or the like, or a salt with an organic group
- a salt with an inorganic acid for example, Pharmacologically, such as hydrochloride, hydrobromide, sulfate, phosphate, etc., or salts with organic acids, such as acid, succinate, oxalate, malate, tartrate
- an acceptable salt can be formed.
- the depsipeptide derivative containing a piperazinone ring represented by the formula (1) of the present invention can be produced by various methods. Examples of these methods are shown in the following reaction schemes 1 to 4.
- an intermediate 21 obtained by protecting one carboxyl group of 2-butene-1,4-dicarboxylic acid and an intermediate 22 obtained by protecting the carboxyl group of 3-hydroxymyristate are The reaction was performed to obtain Intermediate 23, and the protecting group for one of the carboxyl groups of Intermediate 23 was deprotected to obtain Intermediate 24.
- the intermediate 27 obtained here is reacted with the intermediate 22 of Reaction Scheme 3 to give an intermediate 28, and the protecting group of the amino group of the intermediate 28 is deprotected to give the intermediate 29 Was obtained.
- the intermediate 29 was reacted with the intermediate 4 of the reaction scheme 1 to obtain a compound 9. Further, the protecting group of the carboxyl group of Compound 9 was deprotected to obtain Compound 10.
- the debpeptide derivative containing a piperazinone ring represented by the formula (1) of the present invention obtained by the above reaction schemes 1 to 4 or a pharmaceutically acceptable salt thereof is an apolipoprotein E-producing cell. It acts on HepG2 cells and potently promotes production of apolipoprotein E. As a promoter of apolipoprotein E production, and as a therapeutic agent for nerve damage, a therapeutic agent for dementia, and a therapeutic agent for hyperlipidemia. Useful.
- the depsipeptide derivative containing a piperazinone ring of the present invention or a pharmacologically acceptable salt thereof can be formulated into various dosage forms. That is, this preparation includes, as oral preparations, solid preparations such as tablets, hard capsules, soft capsules, granules and powders, and liquid preparations such as solutions, emulsions or suspensions. Parenteral dosage forms include ftli preparations, suppositories and the like.
- additives for formulation such as excipients, stabilizers, preservatives, solubilizers, wetting agents, emulsifiers, lubricants, sweeteners, coloring agents, flavoring agents, Formulations can be made by adding tonicity adjusting agents, buffers, antioxidants and the like.
- additives include starch, sucrose, fructose, lactose, glucose, mannitol, sorbitol, precipitated calcium carbonate, crystalline cellulose, carboxymethylcellulose, dextrin, gelatin, gum arabic, magnesium stearate, tanolek, and hydroxy. Propylmethylcellulose and the like.
- the piperazinone ring-containing debupeptide derivative of the present invention or a pharmacologically acceptable salt thereof it can be used by dissolving or suspending it in a conventional diluent.
- diluent examples include physiological saline, Ringer's solution, aqueous glucose solution, alcohols, lunar fatty acid esters, glycols, glycerin, animal and plant-derived fats and oils, and paraffins. These preparations can be manufactured by a usual method.
- the usual clinical dose is in the range of 0.5 to 50 mg / day, preferably 5 to 500 mg / day for adults, and 0.05 to 500 mg / day for adults in the parenteral case. Range.
- Example 1 The reaction procedure of Example 1 is shown in Reaction Scheme 1.
- specific substances indicated by the intermediate number and the compound number are the same as those shown in Reaction Scheme 1.
- reaction solution was diluted with water, and washed with getyl ether and ethyl ester. While the aqueous layer was stirred in an ice bath, 6 N hydrochloric acid was added to adjust the pH to 2, and the mixture was extracted with chloroform. The organic layer was dried over anhydrous sodium sulfate, and the solvent was distilled off. Thereafter, the product was purified by silica gel column chromatography to obtain Intermediate 4 (0.55 g).
- Zinc powder (1 g) was added to a solution of compound 1 (0.49 g) in drunk acid (5 ml), and the mixture was stirred at 50 ° C for 2 hours. The insoluble material was separated by filtration, the solvent was distilled off from the filtrate, and the residue was purified by silica gel column chromatography to obtain 0.43 g of Compound 2.
- Example 2 The reaction procedure of Example 2 is shown in Reaction Scheme 2.
- the specific substances indicated by the intermediate number and the conjugate number are the same as those shown in Reaction Scheme 2.
- reaction solution was concentrated under reduced pressure to about 3 Oml, the residue was diluted with getyl ether, washed with water, and dried over anhydrous magnesium sulfate. After evaporating the solvent, the residue was purified by silica gel column chromatography to obtain Intermediate 9 (7.14 g).
- Example 3 The reaction procedure of Example 3 is shown in Reaction Scheme 3.
- the specific substances indicated by the intermediate number and the compound number are the same as those shown in Reaction Scheme 3.
- ⁇ -NR ( ⁇ ppm, CDC1 3) 7.90-7.92 (2H, m), 7.59-7.63 (1H, m), 7.47-7.51 (2H, m), 5.72-5.83 (2H, m), 5.36 (2H, s), 3.29-3.31 (2H, m), 3.15-3.17 (2H, m).
- reaction solution was stirred under ice cooling for 2 hours and at room temperature overnight. After filtration and concentration, ethyl acetate and a 10% aqueous solution of citric acid were added. The obtained organic phase was washed with water, a 5% aqueous sodium hydrogen carbonate solution and water, and then dried over anhydrous sodium sulfate. After evaporating the solvent, the residue was purified by silica gel column chromatography to obtain 1.31 g of intermediate 28.
- the debpeptide derivative containing a piperazinone ring of the present invention was used in HepG2 cells to produce apolipopin tin E and apolipoprotein B. The effect on performance is described together with the test method.
- the medium (D-MEM medium) was replaced again, and 10% methanol solution of the depsipeptide derivative containing the pyrazinone ring was added.
- the medium was further cultured at 37 ° C for 8 hours, and the supernatant was removed.
- Apolipoprotein E produced in the medium was quantified by the enzymimnoassay method described below.
- the composition of the buffer used in the Enzymimnoassay method is shown below.
- the PBS is a phosphate buffer
- the PBS-T is a phosphate buffer supplemented with Tween 20
- the blocking solution is Dainippon Pharmaceutical's milk protein-derived blocking agent "B1ock Ac e”. ”Indicates a phosphorus ⁇ impaction.
- a mouse anti-human polypop-mouthed tin E monoclonal antibody (manufactured by BYOSIS, S.A., France) was dissolved in a 0.05 M aqueous sodium hydrogencarbonate solution (pH 9.5) at a concentration of 5 g / ml.
- This 501 was dispensed into a Nunc immunoplate and allowed to stand at 4 ° C. for 16 hours. After washing with PBS 3001 three times, 300 ⁇ l of a blocking solution was added, and the mixture was allowed to stand at 37 ° C for 2 hours and then at 4 ° C for 16 hours.
- the coloring solution composition: 0.1M potassium citrate ⁇ 4.5 lml, 30% peroxydanihydrogen solution 0.4 ⁇ l (Fenylenediamine l mg) 100 ⁇ l was added and left as it was for 2 minutes. The reaction was stopped by adding 100 ⁇ l of 2-sulfuric acid, and the absorbance at 49 O nm was measured using 65 O nm as a control.
- apolipoprotein E manufactured by Chemicon, USA
- the amount of apolipoprotein E of the debeptide derivative containing a piperazinone ring of the present invention was determined.
- the amount of apolipoprotein E was measured in the same manner as in this test example, except that methanol was used instead of the methanol solution of the debpeptide derivative containing a piperazinone ring of the present invention. This was used as the control.
- the relative apolipoprotein E content of the debpeptide derivative containing a piperazinone ring of the present invention was represented by the relative value (%) of ⁇ when the control was 100.
- Compound 10 magnesium silicate and lactose are mixed, kneaded with an alcoholic solution in which hydroxypropyl cellulose is dissolved, then adjusted to an appropriate particle size, dried, and further mixed with magnesium stearate and hardened vegetable oil. -Make granules. Then, a dipstick having a diameter of 7.0 mm, a weight of 15 Omg and a hardness of 6 kg was prepared by a rotary tableting machine.
- Sucrose, D-sorbitol, ethyl para-hydroxybenzoate, propyl para-hydroxybenzoate, and the TFA salt of the compound 6 were dissolved in 6 Og of purified water (? ⁇ ⁇ ). After cooling, a solution of glycerin and ethanol in which the flavor was dissolved was added. Next, purified water was added to the mixture to make up to 10 Oml.
- Glycerin was added to compound 10 and dissolved. After adding Macrogonore 4000 to the mixture and dissolving it, it was poured into a suppository mold and cooled and solidified to produce 1.5 g of suppositories per piece.
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Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99935054A EP1028126A4 (en) | 1998-08-04 | 1999-08-04 | DEPSIPEPTIDE DERIVATIVES WITH PIPERAZINE RINGS |
| US09/509,132 US6288038B1 (en) | 1998-08-04 | 1999-08-04 | Depsipeptide derivatives bearing piperazinone rings |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22039898 | 1998-08-04 | ||
| JP10/220398 | 1998-08-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2000008047A1 true WO2000008047A1 (en) | 2000-02-17 |
| WO2000008047A8 WO2000008047A8 (en) | 2000-05-04 |
Family
ID=16750502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1999/004205 Ceased WO2000008047A1 (en) | 1998-08-04 | 1999-08-04 | Depsipeptide derivatives bearing piperazinone rings |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6288038B1 (ja) |
| EP (1) | EP1028126A4 (ja) |
| WO (1) | WO2000008047A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150105319A (ko) * | 2013-01-17 | 2015-09-16 | 얀센 파마슈티카 엔.브이. | 감마 세크레타제 조절 인자로서의 신규 치환 피리도-피페라지논 유도체 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19921887A1 (de) * | 1999-05-12 | 2000-11-16 | Bayer Ag | Endoparasitizide Mittel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997049724A1 (fr) * | 1996-06-25 | 1997-12-31 | Nisshin Flour Milling Co., Ltd. | Depsipeptides cycliques et medicaments contenant ces composes comme ingredient actif |
| WO1997049722A1 (en) * | 1996-06-25 | 1997-12-31 | Nisshin Flour Milling Co., Ltd. | Depsipeptides and drugs containing the same as the active ingredient |
| EP0927723A1 (en) * | 1997-12-25 | 1999-07-07 | Nisshin Flour Milling Co., Ltd. | Bicyclic depsipeptides promoting the production of apolipoprotein E |
| EP0931792A1 (en) * | 1998-01-27 | 1999-07-28 | Nisshin Flour Milling Co., Ltd. | Depsipeptides containing non-natural amino acids |
| JPH11263797A (ja) * | 1997-12-25 | 1999-09-28 | Nisshin Flour Milling Co Ltd | N―置換グリシン残基を含有するデプシペプチド |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4593098A (en) * | 1979-06-14 | 1986-06-03 | The Upjohn Company | Piperazinone and piperazine polypeptides |
-
1999
- 1999-08-04 US US09/509,132 patent/US6288038B1/en not_active Expired - Fee Related
- 1999-08-04 WO PCT/JP1999/004205 patent/WO2000008047A1/ja not_active Ceased
- 1999-08-04 EP EP99935054A patent/EP1028126A4/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997049724A1 (fr) * | 1996-06-25 | 1997-12-31 | Nisshin Flour Milling Co., Ltd. | Depsipeptides cycliques et medicaments contenant ces composes comme ingredient actif |
| WO1997049722A1 (en) * | 1996-06-25 | 1997-12-31 | Nisshin Flour Milling Co., Ltd. | Depsipeptides and drugs containing the same as the active ingredient |
| EP0927723A1 (en) * | 1997-12-25 | 1999-07-07 | Nisshin Flour Milling Co., Ltd. | Bicyclic depsipeptides promoting the production of apolipoprotein E |
| JPH11263797A (ja) * | 1997-12-25 | 1999-09-28 | Nisshin Flour Milling Co Ltd | N―置換グリシン残基を含有するデプシペプチド |
| EP0931792A1 (en) * | 1998-01-27 | 1999-07-28 | Nisshin Flour Milling Co., Ltd. | Depsipeptides containing non-natural amino acids |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150105319A (ko) * | 2013-01-17 | 2015-09-16 | 얀센 파마슈티카 엔.브이. | 감마 세크레타제 조절 인자로서의 신규 치환 피리도-피페라지논 유도체 |
| KR102171710B1 (ko) | 2013-01-17 | 2020-10-30 | 얀센 파마슈티카 엔.브이. | 감마 세크레타제 조절 인자로서의 신규 치환 피리도-피페라지논 유도체 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1028126A1 (en) | 2000-08-16 |
| WO2000008047A8 (en) | 2000-05-04 |
| EP1028126A4 (en) | 2004-11-10 |
| US6288038B1 (en) | 2001-09-11 |
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