EP3154981A1 - Dérivés de 2h-pyrazolo [ 4,3-c ] quinolin-3-one et son utilisation (5h) - Google Patents
Dérivés de 2h-pyrazolo [ 4,3-c ] quinolin-3-one et son utilisation (5h)Info
- Publication number
- EP3154981A1 EP3154981A1 EP15732863.4A EP15732863A EP3154981A1 EP 3154981 A1 EP3154981 A1 EP 3154981A1 EP 15732863 A EP15732863 A EP 15732863A EP 3154981 A1 EP3154981 A1 EP 3154981A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- quinolin
- pyrazolo
- compound
- pentyl
- diseases
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
- C07D487/04—Ortho-condensed systems
Definitions
- the present invention relates to novel 2H-pyrazolo [4,3-c] quinolin-3 (5H) -one derivatives of Formula I and their use in the treatment and / or prevention of diseases or conditions associated with a modification (increased or decrease) in CB 2 receptor activity, especially autoimmune diseases.
- the CB 2 receptor is mainly expressed in cells associated with the immune system, such as leukocytes, macrophages, B and T lymphocytes. This receptor is also present in the spleen, tonsils and prostate, and on the cells. glial (microglia, astrocytes).
- CB 2 receptor The location of the CB 2 receptor at the level of the immune cells demonstrates the involvement of this receptor in the immunomodulatory effects induced by the cannabinoids.
- the cannabinoid CB 2 receptor appears to be an important mediator of inflammatory cytokine release and several in vitro and in vivo studies indicate that CB 2 receptor ligands are potential therapeutic agents for diseases or conditions associated with modification (increase or decrease) CB 2 receptor activity, including autoimmune diseases causing chronic inflammation.
- the CBi receptor is responsible for the psychotropic effects caused by cannabinoids and in particular by THC ( ⁇ -9-tetrahydrocannabinol), the main psychoactive compound found in cannabis.
- CB 2 receptor suggests its important role in the control of the homeostasis of the immune system (production of pro and anti-inflammatory cytokines, migration, proliferation and activation of immune cells) [Recent advances in the development of selective CB (2) agonists as promising anti-inflammatory agents. Leleu-Chavain N, Body-Malapel M, Spencer J, Chavatte P, Desreumaux P, Millet R Curr Med Chem. 2012; 19 (21): 3457-74.]. The absence of cannabinoid-induced immunomodulation in mice lacking CB 2 receptors, highlights the role of CB 2 in many diseases such as inflammatory diseases, such as neurodegenerative diseases (MS, Alzheimer's disease, Parkinson's disease).
- MS neurodegenerative diseases
- 1,4 dihydropyridine and their use as modulator of the CB 2 receptor. Some of these compounds are indeed selective agonists of CB 2 .
- the invention thus relates to compounds of Formula I, their pharmaceutically acceptable solvates as well as the use of these compounds, or their solvates or compositions containing them as CB 2 agonists.
- the invention relates to compounds of Formula I:
- R 1 is C 4 -C 6 linear alkyl, C 4 -C 6 linear haloalkyl or C 1 -C 2 tetrahydropyranylalkyl;
- R is cycloalkyl, cycloalkylalkyl or C3-C6 alkyl.
- the invention in another aspect, relates to pharmaceutical compositions comprising at least one compound according to the invention or one of its pharmaceutically acceptable solvates and at least one pharmaceutically acceptable excipient.
- the invention also relates to the use of the compounds according to the invention or a pharmaceutically acceptable solvate thereof as CB 2 agonists. Therefore, the compounds of the invention and their pharmaceutically acceptable solvates are useful in the treatment and / or prevention of diseases or conditions associated with a modification (increase or decrease) in CB 2 receptor activity.
- the invention therefore also relates to the compounds according to the invention for use as a medicament, especially in the treatment and / or prevention of diseases or conditions mediated by CB 2 .
- the invention relates to compounds of Formula I as well as their pharmaceutically acceptable solvates.
- Compounds of Formula I and their preferred pharmaceutically acceptable solvates are those wherein R 1 and / or R 2 are defined as follows:
- R 1 is C 4 to C 6 linear alkyl, C 3 to C 5 linear trifluoromethylalkyl or C 1 to C 2 tetrahydropyranylalkyl; preferably, R 1 is C 5 -C 6 linear alkyl (--pentyl and--hexyl), linear C 3 (1,1,1-trifluoro-n-butyl) trifluoromethylalkyl or C 1 (tetrahydropyranylmethyl) tetrahydropyranylalkyl; or R 1 is C 5 linear alkyl (w-pentyl), C 3 linear trifluoromethylalkyl (1,1,1-trifluoro-2-butyl) or C 1 to C 2 tetrahydropyranylalkyl, more preferably R 1 is C 5 linear alkyl (n pentyl); R is C 5 -C 6 alkyl, C 5 -C 12 cycloalkyl or C 3 -C 12 cycloalkyl-C 1
- the compounds of Formula I and their pharmaceutically acceptable solvates are those wherein R 1 is as defined above and R is selected from the group consisting of w-pentyl, n-hexyl, cyclohexyl, cyclopropylmethyl cyclohexylmethyl, cyclohexylethyl, adamantylmethyl and adamantylethyl, preferably R is selected from the group consisting of--pentyl,--hexyl, cyclohexyl, cyclopropylmethyl, cyclohexylmethyl, cyclohexylethyl, adamant-1-ylmethyl and adamant-1-ylethyl.
- the inventors believe that the selectivity of the compounds of the invention for CB 2 versus CBi is obtained thanks to the bulky hydrophobic group R. At the same time, this group allows a good affinity of the compounds of the invention for CB 2 .
- the compounds of the invention have an affinity for the CB 2 receptor of the nanomolar order, in particular less than 100 nM, preferably less than 50 nM and more preferably still less than 30 nM.
- Particularly preferred compounds of the invention are those listed in Table 1 below:
- the compounds of Formula I can be prepared according to reactions known to those skilled in the art.
- the reaction schemes described in the "Examples" section illustrate possible synthetic approaches.
- the invention relates to the use of the compounds of the invention or their pharmaceutically acceptable solvates as CB 2 agonists.
- the compounds of the invention are thus useful in the treatment and / or prevention of diseases or conditions associated with a modification (increase or decrease) in the activity of the CB 2 receptor.
- the invention therefore also relates to the compounds according to the invention for use as a medicament, in particular for use in the treatment and / or prevention of diseases or conditions mediated by CB 2 .
- diseases or conditions include autoimmune diseases, neurodegenerative diseases, inflammatory diseases, osteoporosis, pain and inflammatory cancers.
- the diseases or conditions are selected from inflammatory bowel disease (IBD), multiple sclerosis (MS), lupus erythematosus, autoimmune thyroiditis, rheumatoid arthritis, spondyloarthritis. ankylosing, atopic dermatitis, hepatitis, Goujerot-Sjögren's syndrome, Alzheimer's disease, amyotrophic lateral sclerosis (ALS, also called Charcot's disease), osteoporosis and pain.
- Inflammatory chronic diseases of the intestine for their part include Crohn's disease and ulcerative colitis (UC).
- the invention relates to the compounds of formula I as described above for use in the treatment of inflammatory bowel disease (IBD), more particularly Crohn's disease and / or ulcerative colitis (UC).
- IBD inflammatory bowel disease
- UC ulcerative colitis
- the present invention concerns also a method of treating the diseases and conditions indicated above comprising administering to a patient an effective dose of a compound according to the invention, or a pharmaceutically acceptable solvate thereof.
- the patient is a warm-blooded animal, more preferably a human.
- the invention relates to a method for modulating the activity of the CB 2 receptor in a patient, preferably a warm-blooded animal, more preferably a human, in need, said method comprising the administration to this patient an effective dose of a compound according to the invention, or a pharmaceutically acceptable solvate thereof.
- the invention also relates to a pharmaceutical composition
- a pharmaceutical composition comprising at least one compound of Formula I or at least one pharmaceutically acceptable solvate of said compound and a pharmaceutically acceptable excipient.
- Said excipients are chosen according to the pharmaceutical form and the desired mode of administration, from the usual excipients which are known to those skilled in the art.
- the pharmaceutical composition of the present invention may be selected from pharmaceutical compositions for oral, sublingual, subcutaneous, intramuscular, intravenous, topical, local, intratracheal, intranasal, transdermal or rectal administration.
- the active ingredient of Formula I above, or its pharmaceutically acceptable solvate may be administered in unit dosage form, in admixture with conventional pharmaceutical excipients, to animals and humans for treatment and / or the prevention of the diseases or conditions indicated above.
- Suitable unit dosage forms include oral forms such as tablets, soft or hard capsules, powders, granules and oral solutions or suspensions, sublingual, oral, intratracheal, intraocular, intranasal forms of administration , by inhalation, topical, transdermal, subcutaneous, intramuscular or intravenous administration forms, rectal administration forms and implants.
- the compounds according to the invention can be used in creams, gels, ointments or lotions.
- it is a pharmaceutical composition for oral administration.
- Such suitable administration forms which may be in solid, semi-solid or liquid form depending on the mode of administration, are generally known to those skilled in the art, reference being made to the last edition of the book "Remington's Pharmaceutical Sciences ".
- the pharmaceutical composition according to the invention is a pharmaceutical composition for oral administration.
- the compounds of the invention are, to the inventors' knowledge, the first agonists of CB 2 active orally in the context of the treatment of inflammatory bowel disease (IBD).
- IBD inflammatory bowel disease
- halo alone or as part of another moiety, refers to fluoro, chloro, bromo, or iodo.
- the preferred halo groups are chloro and fluoro, fluoro being particularly preferred.
- alkyl (e) denotes a hydrocarbon radical of formula C n H2 n + 1 in which n is an integer greater than or equal to 1.
- haloalkyl (e) denotes an alkyl radical as defined above in which one or more hydrogen atoms are replaced by a halo group as defined herein. -above.
- Preferred C 4 to C 6 linear haloalkyl radicals are 1,1,1-trifluoro-2-butyl, 1,1,1-trifluoro-3-pentyl and 1,1,1-trifluoro-2-hexyl, 1,1,1-trifluoro-2-butyl is particularly preferred.
- cycloalkyl (e) refers to a saturated mono-, di- or tri-cyclic hydrocarbon radical having 3 to 12 carbon atoms, especially 5 to 10 carbon atoms. more particularly 6 to 10 carbon atoms.
- Suitable cycloalkyl radicals include, but are not limited to, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, norbornyl, adamantyl, especially adamant-1-yl and adamant-2-yl, 1-decalinyl.
- Preferred cycloalkyl groups include cyclopropyl, cyclohexyl, adamant-1-yl and adamant-2-yl.
- the compounds of formula I may exist in the form of solvates, namely in the form of associations or combinations with one or more solvent molecules, such as, for example, ethanol or water.
- solvent molecules such as, for example, ethanol or water.
- the compounds of the invention are the compounds of Formula I and their solvates as defined above, including all their polymorphs and crystalline forms, their prodrugs and compounds or solvates bearing an isotopic label.
- patient refers to a warm-blooded animal, preferably a human who is waiting for or receiving medical treatment.
- human refers to subjects of both sexes and at any stage of development (ie neonatal, infantile, juvenile, adolescent and adult). In one embodiment, it is a teenager or an adult, preferably an adult.
- treat and “treat” should be understood in their general meaning and thus include the improvement and repeal of a medical condition.
- prevent refers to avoiding or delaying the onset of a disease or condition and related symptoms, thereby excluding a patient from developing a disease or condition or reducing a patient's risk. to develop a disease or condition.
- terapéuticaally effective dose refers to the dose of active ingredient (compound of Formula I) which is sufficient to achieve the desired therapeutic or prophylactic result in the patient to whom it is administered.
- pharmaceutically acceptable means that a compound or component is not harmful to the patient and that in the context of a pharmaceutical composition it is compatible with the other components.
- agonist refers to a ligand that activates an intracellular response when it binds to a receptor and covers entire agonists as well as partial agonists.
- Figure 1A Survival rate in a model of acute colitis in mice for compound 26 compared to a CB 2 agonist of the prior art.
- Figure 1B Evaluation of body weight loss in a model of acute colitis in mice for compound 26 compared to a CB 2 agonist of the prior art.
- Figure 2A-D Macroscopic Score (A), Histological Damage (B), TNF ⁇ and IL- ⁇ (C, D) in the Colon after TNBS-mediated Colitis and Treatment with Compound 26 or CB Agonist 2 of the prior art.
- the purity of the synthesis products was monitored by thin layer chromatography on 60F254 silica gel plates 0.2 mm thick (5735 Merck) (UV: 254 and 366 nm) for the products with bonds conjugates, ninhydrin for amines, iodine in all cases, Dragendorff reagent for compounds having a heterocyclic nitrogen atom). Purifications by column chromatography were carried out on silica gel 60, particle size 0.040-0.063 mm (ref 9385.5000 Merck). The eluent was chosen to obtain a Rf between 0.20 and 0.25 on TLC plates. The melting points (Mp) were determined using a Buchi SMP 20 device and are not corrected. They are expressed in degrees Celsius (° C).
- the infrared spectra were carried out on a Bruker Vector 22 Fourier Transform Spectrometer. The characteristic signals are marked by their wavenumber expressed in cm- 1 .
- the 1 H NMR spectra were recorded at 300 MHz on a transform apparatus.
- Fourier Bruker AC 300P, with TMS (trimethylsilane) as internal reference Each signal is identified by its chemical shift ( ⁇ in ppm), its intensity (number of H), its multiplicity (s, singlet, d, doublet; , triplet; q, quadruplet; m, massive or multiplet) and possibly its coupling constant (J in Hertz). In the case of massifs, this one is not measurable. All compounds were characterized by LC-MS.
- the high performance liquid chromato graph (ODS column, mobile phase: water / acetonitrile / formic acid in gradient mode) is coupled to a UV detector and an APC type detector (chemical ionization at Atmospheric Pressure). The spectra were recorded on a Thermo Electron Surveyor MSQ device.
- the ethyl 1-alkyl-4-oxo-1,4-dihydroquinoline-3-carboxylate is solubilized in pyridine, and then the phosphorus pentasulfide is added.
- the mixture is refluxed for 8 hours.
- the reaction medium is poured into distilled water.
- the sulfur product is extracted with ethyl acetate.
- the organic phase is washed with 1N hydrochloric acid solution, then with water, dried over magnesium sulfate, filtered and taken to dryness under reduced pressure.
- the red oil obtained is purified by chromatography on silica gel.
- the ethyl 1-alkyl-4-thioxoquinoline-3-carboxylate is solubilized in absolute ethanol.
- the hydrazine monohydrate is added and the medium is refluxed for 16 hours. After having evaporated the solvent under reduced pressure, the residue obtained is taken up in distilled water, drained, dried and recrystallized from absolute ethanol.
- 5-alkyl-2H-pyrazolo [4,3-c] quinolin-3 (5H) -one is solubilized in anhydrous DMF.
- the medium is placed under nitrogen at 0 ° C. and the sodium hydride is added in portions.
- the medium is then left stirring for 30 min and then the brominated derivative is added.
- the reaction is stirred at 90 ° C for 16h.
- the reaction is poured into the distilled water.
- the precipitate is filtered off, washed with water, dried and then purified by chromatography on silica gel followed by recrystallization from acetonitrile.
- [3H] -CP-55,940 (0.5 nM) as radioligand chosen for human receptors CBi and CB2, is added to 6 .mu.g of membranes resuspended in 550 ⁇ ⁇ (final volume) of buffer (20 mM Hepes, 5 mM MgCl 2 , 1 mM EDTA, 0.3% bovine serum albumin, pH 7.4).
- N-2 (R group) by an aromatic residue induces a drastic loss of activity (compounds 21, 24, 26 vs. 19).
- Table 4 summarizes the functional activities of certain compounds of the invention for the cannabinoid hCB 2 receptor. Table 4: Functional Activities
- compounds 16 and 24-26 are all agonists with an EC 50 ranging from 5.4 nM to 204 nM and an Emax around 150%. In vivo pharmacology.
- the mice are anesthetized for 90-120 min by subcutaneous administration of zylasin-ketamine (50 mg / kg) diluted in physiological saline, and then administered intrarectally with TNBS (40 ⁇ M).
- the new CB2 agonists are diluted in 0.5% carboxymethylcellulose (Sigma-Aldrich, Saint Quentin Fallavier, France) for a dose administered by gavage of 0.1, 1 and 10 mg / kg body weight / day.
- JWH133 a known CB2 agonist
- Kimball ES Schneider CR, Wallace NH, Hornby PJ, Agonists of cannabinoid receptor 1 and 2 inhibitory experimental colitis induced by oil of mustard and sodium dextran sulfate, Am J Physiol Gastrointest, Liver Physiol ., 2006, 291, G364-71.
- the animals are euthanized 5 days after administration of TNBS.
- the intensity of colitis at macroscopic and histological levels is evaluated in each colon by two blind investigators.
- the scale of macroscopic lesion scores ranges from 0 to 10 according to characteristics reflecting inflammation, such as hyperemia, thickening of the intestinal wall, extent of ulcerations.
- a colon biopsy located exactly 2 cm above the anal canal is used for histological analysis following a May-Grunwald Giemsa stain.
- the histological score varies between 0 and 6 and takes into account the degree of inflammatory infiltrate, the presence of erosion, ulcerations or necrosis of the mucosa, and the level of extension of lesions in depth and on the surface affected.
- Two other colon biopsies are frozen and used to analyze inflammatory cytokine mRNA levels by real-time PCR.
- the total mRNAs of the colon are extracted using the Nucleospin RNAII kit (Macherey Nagel, Hoerdt, France) and then retro-transcripts using the high-capacity cDNA Reverse Transcription Kit (Applied Biosystems, Foster City, USA). Real-time PCR is performed with SYBR Green (Applied Biosystems, Foster City, USA). Specific primers for TNF alpha (TNF alpha F and TNF alpha R), IL-1 beta (IL1 beta F and IL 1 beta R) and POLR2A (POLR2A F and POLR2A R) as a reference gene were selected using Primer Express 2 software (Applied Biosystems, Foster City, USA).
- Compound 26 was evaluated in mice in a model of TNBS-induced colitis according to a protocol described (Desreumaux, P., Dubuquoy, L., Nutten, S., Peuchmaur, M, Englaro, W., Schoonjans, K.
- RXR Retinoid X Receptor
- PPARgamma Peroxisome Proliferator-Activated Receptor Gamma
- CMC carboxymethylcellulose
- the data set shows that compound 26 is effective in mice against colitis in a dose-dependent manner after oral administration.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pharmacology & Pharmacy (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Rheumatology (AREA)
- Pain & Pain Management (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Neurosurgery (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1455322A FR3022245B1 (fr) | 2014-06-12 | 2014-06-12 | Derives de 3,5-dihydro-2h-pyrazolo[4,3-c]pyridin-3-one et leur utilisation |
| PCT/FR2015/051549 WO2015189523A1 (fr) | 2014-06-12 | 2015-06-11 | Derives de 2h-pyrazolo[4,3-c]quinolin-3(5h)-one et leur utilisation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3154981A1 true EP3154981A1 (fr) | 2017-04-19 |
Family
ID=51570576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15732863.4A Withdrawn EP3154981A1 (fr) | 2014-06-12 | 2015-06-11 | Dérivés de 2h-pyrazolo [ 4,3-c ] quinolin-3-one et son utilisation (5h) |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20170137419A1 (fr) |
| EP (1) | EP3154981A1 (fr) |
| CA (1) | CA2950853A1 (fr) |
| FR (1) | FR3022245B1 (fr) |
| IL (1) | IL249307A0 (fr) |
| WO (1) | WO2015189523A1 (fr) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2261211A1 (fr) | 2009-05-20 | 2010-12-15 | Université de Lille 2 Droit et Santé | Dérivés de 1,4-dihydropyridine et leurs utilisations |
| US8895580B2 (en) * | 2009-10-21 | 2014-11-25 | Merck Sharp & Dohme Corp. | Quinolinone-pyrazolone M1 receptor positive allosteric modulators |
-
2014
- 2014-06-12 FR FR1455322A patent/FR3022245B1/fr active Active
-
2015
- 2015-06-11 CA CA2950853A patent/CA2950853A1/fr not_active Abandoned
- 2015-06-11 EP EP15732863.4A patent/EP3154981A1/fr not_active Withdrawn
- 2015-06-11 US US15/317,827 patent/US20170137419A1/en not_active Abandoned
- 2015-06-11 WO PCT/FR2015/051549 patent/WO2015189523A1/fr not_active Ceased
-
2016
- 2016-11-30 IL IL249307A patent/IL249307A0/en unknown
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2015189523A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2950853A1 (fr) | 2015-12-17 |
| FR3022245A1 (fr) | 2015-12-18 |
| FR3022245B1 (fr) | 2016-07-01 |
| WO2015189523A1 (fr) | 2015-12-17 |
| US20170137419A1 (en) | 2017-05-18 |
| IL249307A0 (en) | 2017-02-28 |
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