WO2014096093A1 - 3,5-diaryl-azaindoles comme inhibiteurs de la protéine dyrk1a pour le traitement des déficiences cognitives liées au syndrome de down et à la maladie d'alzheimer - Google Patents
3,5-diaryl-azaindoles comme inhibiteurs de la protéine dyrk1a pour le traitement des déficiences cognitives liées au syndrome de down et à la maladie d'alzheimer Download PDFInfo
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- WO2014096093A1 WO2014096093A1 PCT/EP2013/077224 EP2013077224W WO2014096093A1 WO 2014096093 A1 WO2014096093 A1 WO 2014096093A1 EP 2013077224 W EP2013077224 W EP 2013077224W WO 2014096093 A1 WO2014096093 A1 WO 2014096093A1
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- GIPGJYARDOQGDJ-UHFFFAOYSA-N Brc(cc12)cnc1[nH]cc2I Chemical compound Brc(cc12)cnc1[nH]cc2I GIPGJYARDOQGDJ-UHFFFAOYSA-N 0.000 description 1
- 0 COc(c(OC)c1)ccc1-c1cc(c(-c2ccc(*)cc2)c[n]2)c2nc1 Chemical compound COc(c(OC)c1)ccc1-c1cc(c(-c2ccc(*)cc2)c[n]2)c2nc1 0.000 description 1
- JYAKTORKVLZNJK-UHFFFAOYSA-N COc1cc(-c(c2c3)c[nH]c2ncc3-c2cc(OC)ccc2)ccc1 Chemical compound COc1cc(-c(c2c3)c[nH]c2ncc3-c2cc(OC)ccc2)ccc1 JYAKTORKVLZNJK-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
- C07D471/04—Ortho-condensed systems
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
Definitions
- the present invention relates to novel DyrkIA protein inhibitors based on a 3,5-diaryl-azaindole unit and their use as medicaments, particularly in the treatment of cognitive disorders related to dysfunction of the DyrkIA protein.
- DyrkIA (“Dual specific tyrosine regulated kinase 1A) protein is a serine / threonine kinase expressed in the brain of the fetus and in the adult brain. This protein is involved in the development of the human brain and maintaining its normal functioning. His role is essential in the processes of learning, memorizing and cognition. In humans, the gene coding for this protein is carried by chromosome 21.
- Down syndrome (trisomy 21) is a congenital genetic disease found in nearly one in 700 births in the United States and accounts for nearly 40% of moderate to severe cases of mental retardation in adults.
- Trisomy 21 affecting the critical part of chromosome 21 (Down Syndrome Critical Region, DSCR)
- the gene coding for the protein is triplicated and the DyrkIA protein is then synthesized at a rate of 1.5 times. higher than the normal rate. It has been shown in mouse models that this overexpression of the DyrkIA protein is involved in the brain and cognitive impairments associated with Down syndrome.
- DyrkIA protein is involved in the phosphorylation of the microtubule-associated protein tau.
- the aberrant phosphorylation of this protein leads to an intracellular aggregation of these proteins which is one of the causes of the development of Alzheimer's disease.
- Alzheimer's disease is a neurodegenerative disease that affects approximately 24 million people worldwide.
- the symptoms of this disease are the loss of memory of recent events, cognitive deficits that reach different functions such as motor skills, language, memory, perception or cognition.
- DyrkIA protein Compounds which make it possible to inhibit the DyrkIA protein are therefore of great interest for the treatment of Down syndrome-related cognitive disorders and for the prevention and / or treatment of the cognitive impairment process related to Alzheimer's disease.
- Inhibitors of the DyrkIA protein have already been described in the prior art.
- One of the first inhibitors of the protein DyrkIA highlighted is the harmine, a ⁇ - carboline of natural origin.
- Synthetic analogues have subsequently been prepared, mainly based on aromatic rings, for example of the indole and aminoimidazole type.
- Debdab et al discloses the use of a compound extracted from marine sponges, leucettamine B, and synthetic derivatives based on a 2-aminoimidazolin-4-one unit. (Leucettines). The most effective compound has an inhibitory activity (IC 50 ) on the DyrkIA protein of the order of 40 nmolar.
- Neagoie et al (European Journal of Medicinal Chemistry, 2012, 49, 379-396) describes chromanones and their inhibitory power on the DyrkIA protein.
- the most effective compound has an IC 50 of the order of 70 nmolar and a good selectivity for the protein DyrkIA.
- Inhibitors of the DyrkIA protein derived from 7-azaindoles substituted in the 3-position by amino-pyrimidines have also been prepared by Meijer et al (J. Med Chem 2008, 51, 737-751, WO2008129152). These meriolins have IC 50 of the order of several tens of nmolar on the DyrkIA protein. Their lack of selectivity for this specific protein is however a problem, these compounds being cytotoxic.
- One of the main drawbacks of the compounds of the prior art known to inhibit the DyrkIA protein is in general their low affinity and / or selectivity for the DyrkIA protein and / or their cytotoxicity.
- 3,5-Diaryl-7-azaindoles have recently been prepared by Hong et al (Journal of Medicinal Chemistry 2012, 55, 5337-5349). Many compounds have been prepared and their tyrosine kinase A inhibition efficiency evaluated. Among the synthesized compounds, the most effective is capable of inhibiting tyrosine kinase A with an IC 50 of the order of 1 nmolar.
- 3,5-diaryl-7-azaindoles capable of modulating or inhibiting the activity of protein kinases have been described in patent applications WO 2007/106236 and WO 2008/124849.
- the inhibitory capacity of these 3,5-diaryl-7-azaindoles was tested on kinases involved in cell and tumor development such as c-Abl (Abelson tyrosine kinases), Met (Met receptor tyrosine kinases) and Aurora-2 for which they have an IC 50 sometimes much lower than 500 nmolar.
- the 3,5-diaryl-7-azaindoles known from the prior art have remarkable inhibitory activity on kinases involved in cell growth. Since cytotoxic compounds can not be used for the treatment of pathologies such as Alzheimer's disease or Down's syndrome, it was envisaged that Compounds having a structure close to that of the 3,5-diaryl-7-azaindoles described in the prior art could not be used to selectively inhibit the DyrkIA protein.
- the inventors have discovered that the 3,5-diaryl-7-azaindoles according to the present invention are capable of inhibiting the DyrkIA protein with weak IC 50 , are selective for this kinase and show little or no cytotoxicity. .
- the present invention therefore relates to compounds of formula (I) below and their pharmaceutically acceptable salts, solvates and hydrates or their prodrugs:
- X1-X5 are independently of one another H, F, Cl, Br, OR1 or SR 2 , preferably H, F, OR1 or SR 2 ,
- Y1-Y5 are independently of each other H, F, Cl, Br, OR 3 or SR 4 , preferably H, F, OR 3 or SR 4 , where
- Ri and R 3 represent independently of each other H; (dC 6 ) - alkyl, in particular methyl; acyl, especially acetyl; optionally substituted aralkyl, especially benzyl; or optionally substituted aryl; preferably H or methyl,
- R 2 and R 4 independently represent each other H; (CrC 6 ) - alkyl, in particular methyl; acyl, especially acetyl; optionally substituted aralkyl, especially benzyl; or optionally substituted aryl; preferably H or methyl,
- At least one of the radicals X1-X5 and Y1-Y5 different from H represents F, OH or S H, preferably OH,
- At least one radical among the radicals X1-X5 different from H is F, OH or SH, preferably OH and at least one of the radicals Y1-Y5 different from H is F, OH or SH, preferably OH.
- the radicals X 1 -X 5 different from H are preferably F or OR 1 and the radicals Y 1 -Y 5 different from H are preferably F or OR 3 .
- R 1 and R 3 independently of one another represent H, methyl, acetyl or benzyl.
- the term "pharmaceutically acceptable” means that which is useful in the preparation of a pharmaceutical composition which is generally safe, non-toxic and neither biologically nor otherwise undesirable and which is acceptable for veterinary as well as pharmaceutical use. human.
- salts, solvates and hydrates of a compound
- salts, solvates and hydrates which are pharmaceutically acceptable, as defined herein, and which possess the desired pharmacological activity of the parent compound.
- Such salts include:
- acid addition salts formed with inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid and the like; or formed with organic acids such as acetic acid, benzenesulfonic acid, benzoic acid, camphorsulfonic acid, citric acid, ethanesulfonic acid, fumaric acid, glucoheptonic acid, gluconic acid, glutamic acid, glycolic acid, hydroxynaphthoic acid, 2-hydroxyethanesulfonic acid, lactic acid, maleic acid, malic acid, mandelic acid, acid methanesulfonic acid, muconic acid, 2-naphthalenesulfonic acid, propionic acid, salicylic acid, succinic acid, dibenzoyl-L-tartaric acid, tartaric acid, p-toluenesulphonic acid, trimethylacetic acid, trifluoroacetic acid and the like; and
- salts formed when an acidic proton present in the parent compound is replaced by a metal ion for example an alkali metal ion (Na + , K + or Li + for example), an alkali metal ion; earthy (such as Ca 2+ or Mg 2+ ) or an aluminum ion; either coordinates with an organic or inorganic base.
- a metal ion for example an alkali metal ion (Na + , K + or Li + for example), an alkali metal ion; earthy (such as Ca 2+ or Mg 2+ ) or an aluminum ion; either coordinates with an organic or inorganic base.
- Acceptable organic bases include diethanolamine, ethanolamine, N-methylglucamine, triethanolamine, tromethamine and the like.
- Acceptable inorganic bases include aluminum hydroxide, calcium hydroxide, potassium hydroxide, sodium carbonate and sodium hydroxide.
- halogen is meant, in the sense of the present invention, a bromine atom, chlorine, iodine or fluorine.
- (CrC 6 ) -alkyl is intended to mean a linear or branched saturated hydrocarbon-based chain containing from 1 to 6 carbon atoms, in particular the methyl, ethyl and n-propyl groups, isopropyl, n-butyl, iso-butyl, sec-butyl, tert-butyl, n-pentyl, n-hexyl.
- aryl means an optionally substituted aromatic hydrocarbon group preferably comprising from 6 to 10 carbon atoms and comprising one or more contiguous rings, for example a phenyl or naphthyl group.
- aryl is an optionally substituted aromatic hydrocarbon group preferably comprising from 6 to 10 carbon atoms and comprising one or more contiguous rings, for example a phenyl or naphthyl group.
- it is phenyl.
- aryl group When the aryl group is substituted, it may advantageously be substituted by one or more groups chosen from a halogen atom, preferably a fluorine atom, a (CrC 6 ) alkyl, (CrC 6 ) alkoxy, aryl, N 3 group. N0 2 , NH 2 , or -NH- ((C 1 -C 6 ) alkyl); preferably chosen from a halogen atom, a (C 1 -C 6 ) alkyl, (C 1 -C 6 ) alkoxy or aryl group.
- a halogen atom preferably a fluorine atom, a (CrC 6 ) alkyl, (CrC 6 ) alkoxy, aryl, N 3 group.
- N0 2 , NH 2 , or -NH- ((C 1 -C 6 ) alkyl) preferably chosen from a halogen atom, a (C 1 -C
- aralkyl means an aryl group, as defined above, linked to the molecule via a (C 1 -C 6 ) alkyl chain, as defined above.
- acyl is meant, within the meaning of the present invention, a (C 1 -C 6 ) -alkyl or aryl group as defined above, linked to the rest of the molecule via a carbonyl (CO) group. . It may be in particular an acetyl or benzoyl group.
- N-protecting group is intended to mean any substituent which protects the NH group against undesirable reactions such as the N-protecting groups described in Greene, "Protective Groups In Organic Synthesis” (John Wiley & Sons, New York (1981)) and Harrison et al. Compendium of Synthetic Organic Methods, Vols. 1 to 8 (J. Wiley & sons, 1971 to 1996).
- N-protecting groups include, including protected amino function, carbamates, amides, sulfonamides, N-benzyl derivatives, N-silyl derivatives, monoalkylaminopropargylamine derivatives and N-heteroatom derivatives.
- O-protecting group is intended to mean any substituent which protects the hydroxyl or carboxyl group, ie a reactive oxygen atom, against undesirable reactions such as O-groups. described in Greene, Protective Groups In Organic Synthesis, (John Wiley & Sons, New York (1981)) and Harrison et al. "Compendium of Synthetic Organic Methods", Vols.1 to 8 (J.
- O-protecting groups include methyl or substituted or unsubstituted alkyl ethers, for example, methoxymethyl, benzyloxymethyl, 2-methoxyethoxymethyl, 2- (trimethylsilyl) ethoxymethyl, t-butyl, benzyl and triphenylmethyl, benzyl ethers (substituted or unsubstituted), tetrahydropyranyl ethers, allyl ethers, substituted ethyl ethers, for example 2,2,2-trichloroethyl, silyl ethers or alkylsilyl ethers, for example trimethylsilyl (TMS), t-butyldimethylsilyl (TBDMS or TBS) and t-butyldiphenylsilyl, heterocycle ethers; and esters prepared by reaction of the hydroxyl group with a carboxylic acid, for example, tert-but
- S-protecting group is intended to mean any substituent which protects the thiol group (SH) against undesirable reactions such as the S-protecting groups described in Greene, "Protective Groups In Organic Synthesis”.
- S-protecting groups include (substituted or unsubstituted) benzyl ethers, for example p-methoxybenzyl or p-nitrobenzyl, trityl ethers, thioacetates, thioacetals and thioethers.
- deprotection is meant, in the sense of the present invention, the process by which a protecting group is removed once the selective reaction is complete.
- Some protecting groups may be preferred over others because of their convenience or relative ease of disposal.
- prodrug is intended to denote a compound which is administered in an inactive (or less active) form and which is metabolized in vivo, in particular by the action of enzymes or gastric acid, in an active (or more active) form.
- the use of a prodrug makes it possible to improve in particular the physicochemical parameters of a molecule such as solubility as well as pharmacokinetics (vectorization, bioavailability, etc.), in order to favor its assimilation by an organism after administration.
- the prodrug may result in particular from the acylation or phosphorylation of this hydroxyl group.
- Y1-Y5 radicals are different from H.
- the radical among Y1-Y5 different from H is Yi, Y 2 or Y 3 , in particular Y 2 or Y 3 and preferably Y 3 .
- two of the radicals among YY 5 are different from H.
- the two radicals among Y1-Y5 different from H are Yi and Y 3 or Y 2 and Y 3 and preferably Y 2 and Y 3 .
- three of the radicals Y1-Y5 are different from H.
- the three radicals among Y1-Y5 different from H are Y 2 ,
- radical of X1-X5 is different from H X ⁇ X 2 or X 3, in particular X or X 3 and preferably X 3 .
- two of the radicals from XX 5 are different from H.
- both radicals of X1-X5 are other than H and X 3 Xi, Xi and X 2, X 4 and X or X 2 and X 3 , especially X 2 and X 3 , X 1 and X 4 or X 1 and X 3 and preferably X 1 and X 3 or X 2 and X 3 .
- three of the radicals different from X1-X5 H are X 2, X 3 and X 5 or X 2 , X 3 and X 4 .
- At least one of X 1 , X 3 or X 4 is different from H, preferably
- Xi and Y 3 are simultaneously different from H, Xi represents F, Cl, Br, ORi or SR 2 , in particular F or ORi and Y 3 represents F, Cl, Br, OR 3 or SR 4 , especially F or OR 3 .
- Xi and Y 3 are simultaneously different from H and X 2 , X 3 , X 4 , X 5 , ⁇ - ⁇ , Y 2 , Y 4 and Y 5 simultaneously represent hydrogen.
- Xi, Y 2 and Y 3 are simultaneously different from H, Xi represents F, Cl, Br, ORi or SR 2 , especially F or ORi and Y 2 and Y 3 independently of one another represent F, Cl, Br, OR 3 or SR 4 , especially F or OR 3 .
- X 2 , X 3 , X 4 , X 5 , ⁇ - ⁇ , Y 4 and Y 5 simultaneously represent hydrogen.
- X 1 X 3 and Y 3 are simultaneously different from H, X 1 and X 3 independently of one another F, Cl, Br, OR 1 or SR 2 in particular F or ORi and Y 3 represents F, Cl, Br, OR 3 or SR 4, in particular F or OR 3 .
- X 2 , X 4 , X 5 , ⁇ - ⁇ , Y 2 , Y 4 and Y 5 simultaneously represent hydrogen.
- X 3 and Y 3 are different from H, X 3 represents F, Cl, Br, OR 1 or SR 2 , in particular F or OR 1 and Y 3 represents F, Cl, Br, OR 3 or SR 4 , especially F or OR 3 .
- Xi, X 2 , X 4 , X 5 , Y 1 , Y 2 , Y 4 and Y 5 simultaneously represent hydrogen.
- X 3 , Y 2 and Y 3 are different from H, X 3 represents F, Cl, Br, OR 1 or SR 2 in particular F or OR 1 and Y 2 and Y 3 independently of one another represent F, Cl, Br, OR 3 or SR 4 , especially F or OR 3 .
- ⁇ - ⁇ , X 2 , X 4 , X 5 , ⁇ - ⁇ , Y 4 and Y 5 simultaneously represent hydrogen.
- X 2 , X 3 and Y 3 are different from H, X 2 and X 3 represent, independently of one another, F, Cl, Br, OR 1 or SR 2, especially F or OR 1 and Y 3 represents F, Cl, Br, OR 3 or SR 4, in particular F or OR 3 .
- Xi, X 4 , X 5 , Y 1 , Y 2 , Y 4 and Y 5 simultaneously represent hydrogen.
- X 2 , X 3 , Y 2 and Y 3 are different from H, X 2 and X 3 represent, independently of each other, F, Cl, Br, OR 1 or SR 2 in particular F or OR1 and Y 2 and Y 3 independently of one another represent F, Cl, Br, OR 3 or SR 4, in particular F or OR 3 .
- ⁇ - ⁇ , X 4 , X 5 , ⁇ - ⁇ , Y 4 and Y 5 simultaneously represent hydrogen.
- the present invention also relates to a method for preventing and / or treating Down syndrome-related cognitive disorders comprising the administration of an effective amount of at least one compound of formula (I), its pharmaceutically acceptable salts, solvates, hydrates or its prodrugs as defined above to a patient in need.
- the present invention also relates to the use of at least one compound of formula (I), its pharmaceutically acceptable salts, solvates, hydrates or its prodrugs as defined above for the manufacture of a medicament intended for the prevention and / or or the treatment of cognitive disorders related to Down syndrome.
- the present invention also relates to the novel compounds of formula ( ⁇ ) as defined below, and their pharmaceutically acceptable salts, solvates, hydrates or their prodrugs:
- X 1 , X 2 , X 4 , X 5 , Y 1 , Y 2 , Y 4 and Y 5 are independently of one another H, F, Cl, Br, OH or SH, preferably H, F, OH or SH,
- X 3 is F, OH or SH, preferably OH,
- Y 3 is F, OH or SH, preferably OH, and
- one of the aromatic rings in positions 3 and 5 of 7-azaindole is substituted by at least one group F, Cl, Br, OH or SH, of preferably F, OH or SH, in addition to the radicals X 3 and Y 3 .
- One of the aromatic rings at the 3 and 5 positions of 7-azaindole is therefore di- or tri-substituted and the second aromatic ring mono-, di- or tri-substituted.
- At least one radical from XX 5 is OH and at least one radical from Y1-Y5 represents OH.
- the radical from XX 5 representing OH is X 2 or X 3 and the group of Y1-Y5 representing OH is ⁇ 2 or Y 3.
- X 3 and Y 3 are OH.
- all radicals of XX 5 other than H are independently of one another F or OH, preferably OH, and all radicals of Y1-Y5 different from H are independently other F or OH and preferably OH.
- the present invention also relates to compounds of formula ( ⁇ ), their pharmaceutically acceptable salts, solvates, hydrates or their prodrugs as defined above for their use as medicaments.
- the present invention also relates to compounds of formula ( ⁇ ), their salts, solvates, pharmaceutically acceptable hydrates or their prodrugs as defined above for their use in the prevention and / or treatment of cognitive disorders related to the dysfunction of the protein DyrkIA, especially in the prevention and / or treatment of cognitive disorders related to Down syndrome or Alzheimer's disease.
- the present invention also relates to a method for preventing and / or treating cognitive disorders related to the dysfunction of the DyrkIA protein, in particular a method for preventing and / or treating cognitive disorders related to Down syndrome or Alzheimer's disease, comprising the administration of an effective amount of at least one compound of formula ( ⁇ ), its salts, pharmaceutically acceptable solvates, hydrates or prodrugs thereof as defined above to a patient in need thereof.
- the present invention also relates to the use of a compound of formula ( ⁇ ), its pharmaceutically acceptable salts, solvates, hydrates or its prodrugs as defined above for the manufacture of a medicament, especially intended for the treatment of cognitive disorders.
- a compound of formula ( ⁇ ) related to the dysfunction of the DyrkIA protein, in particular to the prevention and / or treatment of cognitive disorders related to Down syndrome or Alzheimer's disease.
- the present invention also relates to a pharmaceutical composition
- a pharmaceutical composition comprising at least one compound of formula ( ⁇ ), its salts, solvates, pharmaceutically acceptable hydrates or its prodrugs as defined above and a pharmaceutically acceptable excipient.
- the pharmaceutical composition comprising at least one compound of formula ( ⁇ ) is intended for the treatment of cognitive disorders related to the dysfunction of the DyrkIA protein, in particular to the prevention and / or treatment of cognitive disorders related to Down's syndrome or to the disease. Alzheimer.
- compositions according to the invention may be formulated for parenteral (for example subcutaneous, intraperitoneal, intramuscular, intravenous, intrathecal, etc.), oral, sublingual, transdermal, local or rectal administration, intended for mammals, including understood the man.
- parenteral for example subcutaneous, intraperitoneal, intramuscular, intravenous, intrathecal, etc.
- oral sublingual, transdermal, local or rectal administration, intended for mammals, including understood the man.
- the dosage varies according to the treatment and the condition in question.
- the active ingredient in the pharmaceutical compositions of the present invention, can be administered in unit dosage forms, in admixture with conventional pharmaceutical carriers, to animals or humans.
- Suitable oral dosage unit forms include tablets, capsules, powders, granules and oral solutions or suspensions, and parenteral, especially intraperitoneal, forms of administration.
- the main active ingredient is mixed with a pharmaceutical carrier such as gelatin, starch, lactose, magnesium stearate, talc, gum arabic or the like.
- a pharmaceutical carrier such as gelatin, starch, lactose, magnesium stearate, talc, gum arabic or the like.
- the tablets can be coated with sucrose or other suitable materials or they can be treated in such a way that they have prolonged or delayed activity and continuously release a predetermined amount of active ingredient.
- a preparation in capsules is obtained by mixing the active ingredient with a diluent and pouring the resulting mixture into soft or hard gelatin capsules.
- a syrup or elixir preparation may contain the active ingredient together with a sweetener, an antiseptic, as well as a flavoring agent and a suitable colorant.
- Water-dispersible powders or granules may contain the active ingredient in admixture with dispersants or wetting agents, or suspending agents, as well as with taste correctors or sweeteners.
- aqueous suspensions, isotonic saline solutions or sterile and injectable solutions containing dispersing agents and / or pharmacologically compatible wetting agents are used.
- the active ingredient may also be formulated as microcapsules, optionally with one or more additive carriers.
- the subject of the present invention is also a process for preparing a compound of formula ( ⁇ ) as defined above or a pharmaceutically acceptable salt, solvate or hydrate thereof comprising the steps of:
- PG represents an N-protecting group
- Hal represents a halogen atom, in particular bromine, or an OSO 2 CF 3 group
- E 2 represents a boronic acid B (OH) 2 or one of its derivatives
- radicals ⁇ 3 ⁇ and ⁇ 3 ⁇ are F, OPd or SPG 2 , where PG 1 represents an O-protecting group and PG 2 represents an S-protecting group,
- radicals X 1 , X 2 , X 4 , X 5 , Y 1 , Y 2 , Y 4 and Y 5 are independently of each other H, F, Cl, Br, OPd or SPG 2 ,
- PG1 represents an O-protecting group and PG 2 represents an S-protecting group, to give a compound of formula (IV):
- Preferred N-protecting groups according to the present invention are tosylamides such as benzenesulfonamide, 4-nitrobenzenesulfonamide and para-toluenesulfonamide and carbamates such as t-butyloxycarbonyl (Boc), benzyloxycarbonyl (Cbz), benzyl carbamates.
- tosylamides such as benzenesulfonamide, 4-nitrobenzenesulfonamide and para-toluenesulfonamide
- carbamates such as t-butyloxycarbonyl (Boc), benzyloxycarbonyl (Cbz), benzyl carbamates.
- Preferred O-protecting groups according to the invention are optionally substituted benzyl ethers such as 4-methoxybenzyl; the methoxymethyl group and the alkyl ethers such as methyl ether and the esters such as an acyl group and preferably an acetyl group.
- benzyl ethers such as 4-methoxybenzyl
- the methoxymethyl group and the alkyl ethers such as methyl ether
- the esters such as an acyl group and preferably an acetyl group.
- Preferred S-protecting groups according to the invention are optionally substituted benzyl thioethers such as 4-methoxybenzyl; thioesters such as an acyl group and preferably an acetyl group.
- this reaction is carried out in the presence of a catalyst based on a transition metal such as Pd, Ni, Cu and preferably Pd.
- a catalyst based on a transition metal such as Pd, Ni, Cu and preferably Pd.
- the preferred catalysts are complexes of palladium, nickel or copper and preferably palladium.
- the catalyst may be Pd (PPh 3 ) 4 or Pd (OAc) 2 .
- the reaction is carried out at a temperature between 20 and 150 ° C, preferably between 80 and 110 ° C.
- the solvents used to carry out this reaction are aromatic solvents such as toluene; alcohols such as ethanol, propanol and isopropanol and ketones such as acetone.
- aromatic solvents such as toluene
- alcohols such as ethanol, propanol and isopropanol
- ketones such as acetone.
- the reaction is carried out in a mixture of an aromatic solvent and an alcohol, especially in a toluene / ethanol mixture.
- the reaction can be carried out in the presence of a base.
- bases are carbonates such as Na 2 CO 3 or K 2 CO 3 , and alkali metal hydroxides such as NaOH or KOH.
- the deprotection step can be carried out according to methods well known to those skilled in the art, such as those described in Greene, "Protective Groups In Organic Synthesis” (John Wiley & Sons, New York (1981)) and Harrison et al. Compendium of Synthetic Organic Methods, Vols. 1 to 8 (J. Wiley & sons, 1971 to 1996).
- the compounds of formula ( ⁇ ) can be prepared from a 5-halo-3-iodo-azaindole according to the process shown in the following scheme:
- the method according to the invention comprises the steps of:
- the present invention finally relates to a method for assaying the phosphorylating activity of the DyrkIA kinase.
- This method is based on the separation, detection and quantification of a peptide substrate of the enzyme and its phosphorylated product.
- This substrate carries a fluorescent group allowing sensitive and specific detection of the substrate and the product.
- non-phosphorylated substrate bearing a fluorescent group means a molecule which is phosphorylated by the enzyme DyrkIA and on which a fluorescent group is grafted.
- phosphorylated substrate bearing a fluorescent group means the product obtained after phosphorylation by the enzyme DyrkIA of the non-phosphorylated substrate bearing a fluorescent group.
- the DyrkIA protein transforms the non-phosphorylated substrate carrying a fluorescent moiety into a phosphorylated substrate bearing a fluorescent moiety.
- the proportion of phosphorylated non-phosphorylated substrate and phosphorylated substrate carrying a fluorescent moiety for a given time is dependent on the phosphorylating activity of the DyrkIA protein.
- the phosphorylating activity of the DyrkIA protein is further reduced if this inhibitor is effective.
- the determination of the proportion of non-phosphorylated substrate bearing a fluorescent group and phosphorylated substrate bearing a fluorescent group for a determined time thus makes it possible to measure the phosphorylating activity of the DyrkIA protein.
- the assay method includes the steps of:
- the non-phosphorylated substrate is in particular a peptide or a protein. It may be a peptide having the sequence ISGRLSPIMTEQ (SEQ-ID 1) or KKISGRLSPIMTEQ (SEQ-ID 2) as described in Woods, Y. et al. Biochem. J. 355, 597 (2001); Woods, Y. et al. Biochem. J. 355, 609 (2001); Klumpp, M. et al. J. Biomol. Screen. 1, 617 (2006).
- the fluorescent group is preferably selected from the group consisting of fluorescein isothiocyanate (FITC), fluorescein, p-Nitroaniline (pNA) and biotin.
- FITC fluorescein isothiocyanate
- pNA p-Nitroaniline
- biotin biotin
- the non-phosphorylated substrate bearing a fluorescent group is Fluorescein-KKISGRLSPIMTEQ peptide.
- the separation of the non-phosphorylated substrate carrying a fluorescent group and the phosphorylated substrate carrying a fluorescent group can be carried out by chromatography.
- the separation is carried out in particular by high pressure chromatography column (UFLC: Ultra Fast Liquid Chromatography).
- UFLC Ultra Fast Liquid Chromatography
- the phosphorylated substrate with a fluorescent moiety by the enzyme is separated from non-phosphorylated substrate having a fluorescent moiety by column chromatography on a C 8 -C 8 hydrophobic UFLC coupled to a device and a fluorescence detector.
- FIG. 1 represents the results obtained in vivo with the compounds according to the invention on the phosphorylation state of two targets downstream of DyrkIA in the signaling pathways.
- Figure 1a the ordinate axis represents the phosphorylated GSK (pGSK) / GSK non-phosphorylated (GSK) ratio measured by a slot-blot technique.
- the x-axis indicates the compounds tested on control animals (WT) or trisomy model animals for the gene Dyrkl a (TG).
- Figure 1b the ordinate axis represents the ratio phosphorylated CAMKII (pCAMKII) / CAMKII non-phosphorylated (CAMKII) measured by a slot-blot technique.
- the x-axis indicates the compounds tested on control animals (WT) or trisomy model animals for the gene Dyrkl a (TG).
- the aqueous phase is extracted several times with CH 2 Cl 2 and the combined organic phases dried over MgSO 4 .
- the solvent was evaporated under reduced pressure and the residue purified by flash chromatography on silica gel (100% CH 2 Cl 2 ) to give the purified product as a white solid with 89% yield.
- the aqueous phase is extracted several times with CH 2 Cl 2 and the combined organic phases dried over MgSO 4 .
- the solvent was evaporated under reduced pressure and the residue purified by flash chromatography on silica gel (100% CH 2 Cl 2 ) to give the purified product as a colorless oil in 98% yield.
- the mixture is cooled to room temperature, concentrated in vacuo and redissolved in a water / CH 2 Cl 2 mixture.
- the aqueous phase is extracted several times with CH 2 Cl 2 and the combined organic phases dried over MgSO 4 .
- the solvent is evaporated off under reduced pressure and the residue purified by flash chromatography on silica gel
- the test developed is based on the use of a DyrkIA substrate peptide, one of whose amino acids has been labeled with fluorescein.
- the sequence of this peptide (Fluorescein-KKISGRLSPIMTEQ) is derived from the Forkhead protein and has a serine residue that can be phosphorylated by DyrkIA.
- the peptide phosphorylated His-Dyrk1A-AC is separated from non-phosphorylated peptide on a C 8 column or C18 ydrophobe coupled to an apparatus UFLC ⁇ Ultra Fast Liquid Chromatography) with a fluorescence detector.
- the detection is specific and very sensitive thanks to the presence in the peptide of the fluorescein group and the use of a fluorescence detector. Enzymological analyzes show that the test is linear as a function of time and the amount of His-Dyrk1A-AC enzyme (FIG. 1).
- the IC 50 of the various compounds of Example 1 on the protein DyrK1 A was then evaluated.
- the assay of the DyrkIA activity is carried out on a 96-well plate in a final volume of 50 ⁇ l containing 50 mM TrisHCl pH 7.4, 100 ⁇ l EGTA, 1 mM DTT, 5 mM magnesium acetate, 50 to 1000 ⁇ l of ATP, from 5 to 30 ⁇ l of substrate peptide, 10 ng of ADyrkIA enzyme.
- the IC 50 is expressed in nanomoles (nmol).
- the compounds were administered by intraperitoneal injection at a dose of 1 mg / kg at t0 then t16 (hours) and the animals were sacrificed at t17-t18.
- the brain proteins were then extracted and the amounts of GSKIIIbeta, pGSKIIIbeta, CAMKII and pCAMKII proteins were measured by a slot-blot technique with the appropriate antibodies.
- the y-axis represents the ratio phosphorylated protein / non-phosphorylated protein measured on the untreated animals (WT and TG) and on the animals treated with the compounds according to the invention.
- the compounds of formula (I) and of formula ( ⁇ ) thus have a significant inhibitory activity on the DyrkIA protein (IC50 ⁇ 100 nM), a very weak cytoxicity and have a high activity in vivo in trisomy 21 model animals.
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Abstract
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Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015548535A JP2016505584A (ja) | 2012-12-18 | 2013-12-18 | ダウン症候群及びアルツハイマー病に関連する認知欠損の治療のための、dyrk1aタンパク質阻害剤としての3,5−ジアリールアザインドール類 |
| US14/653,570 US9447093B2 (en) | 2012-12-18 | 2013-12-18 | 3,5-diarylazaindoles as DYRK1A protein inhibitors for the treatment of cognitive deficiencies associated with Down's syndrome and with Alzheimer's disease |
| EP13811495.4A EP2953947A1 (fr) | 2012-12-18 | 2013-12-18 | 3,5-diaryl-azaindoles comme inhibiteurs de la protéine dyrk1a pour le traitement des déficiences cognitives liées au syndrome de down et à la maladie d'alzheimer |
| CA2896209A CA2896209A1 (fr) | 2012-12-18 | 2013-12-18 | 3,5-diaryl-azaindoles comme inhibiteurs de la proteine dyrk1a pour le traitement des deficiences cognitives liees au syndrome de down et a la maladie d'alzheimer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1262275 | 2012-12-18 | ||
| FR1262275A FR2999575A1 (fr) | 2012-12-18 | 2012-12-18 | 3,5-diaryl-azaindoles comme inhibiteurs de la proteine dyrk1a pour le traitement des deficiences cognitives liees au syndrome de down et a la maladie d'alzheimer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014096093A1 true WO2014096093A1 (fr) | 2014-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2013/077224 Ceased WO2014096093A1 (fr) | 2012-12-18 | 2013-12-18 | 3,5-diaryl-azaindoles comme inhibiteurs de la protéine dyrk1a pour le traitement des déficiences cognitives liées au syndrome de down et à la maladie d'alzheimer |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9447093B2 (fr) |
| EP (1) | EP2953947A1 (fr) |
| JP (1) | JP2016505584A (fr) |
| CA (1) | CA2896209A1 (fr) |
| FR (1) | FR2999575A1 (fr) |
| WO (1) | WO2014096093A1 (fr) |
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| KR101896568B1 (ko) * | 2017-03-23 | 2018-09-10 | 재단법인 대구경북첨단의료산업진흥재단 | 피롤로-피리딘 유도체 화합물, 이의 제조방법 및 이를 유효성분으로 함유하는 단백질 키나아제 관련 질환의 예방 또는 치료용 약학적 조성물 |
| US11945818B1 (en) | 2023-09-06 | 2024-04-02 | King Faisal University | Pyrrolo[3,2-c]quinoline compounds as CK2 inhibitors |
| US11945823B1 (en) | 2023-09-14 | 2024-04-02 | King Faisal University | Substituted pyrrolo[2,3-d]pyrimidines as CK2 inhibitors |
| US11964981B1 (en) | 2023-09-18 | 2024-04-23 | King Faisal University | Substituted pyrimido[4,5-b]indoles as CK2 inhibitors |
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| WO2004078756A2 (fr) * | 2003-03-06 | 2004-09-16 | Eisai Co., Ltd. | Inhibiteurs des jun-kinases (jnk) |
| WO2005095400A1 (fr) * | 2004-03-30 | 2005-10-13 | Vertex Pharmaceuticals Incorporated | Azaindoles utiles comme inhibiteurs de janus kinases et d'autres proteines kinases |
| WO2006063167A1 (fr) * | 2004-12-08 | 2006-06-15 | Smithkline Beecham Corporation | 1h -pyrrolo[2,3-b]pyridines |
| WO2007106236A2 (fr) | 2006-02-27 | 2007-09-20 | Sgx Pharmaceuticals, Inc. | Modulateurs de kinase a base de pyrrolo-pyridine |
| WO2008124849A2 (fr) | 2007-04-10 | 2008-10-16 | Sgx Pharmaceuticals, Inc. | Modulateurs de pyrrolo-pyridine kinase |
| WO2008129152A1 (fr) | 2007-02-16 | 2008-10-30 | Centre National De La Recherche Scientifique | Composes pyrrolo[2,3-b]pyridine, composes azaindoles utiles dans la synthese de ces composes pyrrolo[2,3-b]pyridine, leurs procedes de fabrication et leurs utilisations |
| WO2011149950A2 (fr) * | 2010-05-24 | 2011-12-01 | University Of Rochester | Hétéroaryles bicycliques formant inhibiteurs de la kinase et procédés d'utilisation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010049173A1 (fr) * | 2008-10-31 | 2010-05-06 | Cenix Bioscience Gmbh | Utilisation d’inhibiteurs de kinases hôtes pour traiter les maladies infectieuses |
-
2012
- 2012-12-18 FR FR1262275A patent/FR2999575A1/fr active Pending
-
2013
- 2013-12-18 EP EP13811495.4A patent/EP2953947A1/fr not_active Withdrawn
- 2013-12-18 CA CA2896209A patent/CA2896209A1/fr not_active Abandoned
- 2013-12-18 JP JP2015548535A patent/JP2016505584A/ja active Pending
- 2013-12-18 US US14/653,570 patent/US9447093B2/en not_active Expired - Fee Related
- 2013-12-18 WO PCT/EP2013/077224 patent/WO2014096093A1/fr not_active Ceased
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| WO2004078756A2 (fr) * | 2003-03-06 | 2004-09-16 | Eisai Co., Ltd. | Inhibiteurs des jun-kinases (jnk) |
| WO2005095400A1 (fr) * | 2004-03-30 | 2005-10-13 | Vertex Pharmaceuticals Incorporated | Azaindoles utiles comme inhibiteurs de janus kinases et d'autres proteines kinases |
| WO2006063167A1 (fr) * | 2004-12-08 | 2006-06-15 | Smithkline Beecham Corporation | 1h -pyrrolo[2,3-b]pyridines |
| WO2007106236A2 (fr) | 2006-02-27 | 2007-09-20 | Sgx Pharmaceuticals, Inc. | Modulateurs de kinase a base de pyrrolo-pyridine |
| WO2008129152A1 (fr) | 2007-02-16 | 2008-10-30 | Centre National De La Recherche Scientifique | Composes pyrrolo[2,3-b]pyridine, composes azaindoles utiles dans la synthese de ces composes pyrrolo[2,3-b]pyridine, leurs procedes de fabrication et leurs utilisations |
| WO2008124849A2 (fr) | 2007-04-10 | 2008-10-16 | Sgx Pharmaceuticals, Inc. | Modulateurs de pyrrolo-pyridine kinase |
| WO2011149950A2 (fr) * | 2010-05-24 | 2011-12-01 | University Of Rochester | Hétéroaryles bicycliques formant inhibiteurs de la kinase et procédés d'utilisation |
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Also Published As
| Publication number | Publication date |
|---|---|
| US9447093B2 (en) | 2016-09-20 |
| US20150307492A1 (en) | 2015-10-29 |
| CA2896209A1 (fr) | 2014-06-26 |
| JP2016505584A (ja) | 2016-02-25 |
| EP2953947A1 (fr) | 2015-12-16 |
| FR2999575A1 (fr) | 2014-06-20 |
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