WO2006075139A2 - Novel process for the preparation of substituted indoles - Google Patents
Novel process for the preparation of substituted indoles Download PDFInfo
- Publication number
- WO2006075139A2 WO2006075139A2 PCT/GB2006/000060 GB2006000060W WO2006075139A2 WO 2006075139 A2 WO2006075139 A2 WO 2006075139A2 GB 2006000060 W GB2006000060 W GB 2006000060W WO 2006075139 A2 WO2006075139 A2 WO 2006075139A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- formula
- compound
- process according
- methyl
- vii
- Prior art date
Links
- SHTVHNWTKBEJOB-UHFFFAOYSA-N Cc([nH]c1cccc([N+]([O-])=O)c11)c1Sc(cc1)ccc1Cl Chemical compound Cc([nH]c1cccc([N+]([O-])=O)c11)c1Sc(cc1)ccc1Cl SHTVHNWTKBEJOB-UHFFFAOYSA-N 0.000 description 2
- 0 C*C(C[n]1c2cccc([N+]([O-])=O)c2c(Sc(cc2)ccc2Cl)c1C)=O Chemical compound C*C(C[n]1c2cccc([N+]([O-])=O)c2c(Sc(cc2)ccc2Cl)c1C)=O 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/04—Indoles; Hydrogenated indoles
- C07D209/30—Indoles; Hydrogenated indoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to carbon atoms of the hetero ring
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/40—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
- A61K31/403—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil condensed with carbocyclic rings, e.g. carbazole
- A61K31/404—Indoles, e.g. pindolol
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/04—Indoles; Hydrogenated indoles
- C07D209/08—Indoles; Hydrogenated indoles with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to carbon atoms of the hetero ring
Definitions
- the present invention relates to a novel process for the preparation of substituted indoles which are useful as therapeutic agents.
- WO 04/106302 discloses a series of substituted indoles useful for the treatment of respiratory diseases.
- the invention therefore provides a process for the preparation of a compound of formula (I) or a pharmaceutically acceptable salt or solvate thereof:
- R is an ester forming group, and optionally thereafter forming a pharmaceutically acceptable salt or solvate.
- the reaction can be carried out in the presence of a base followed by treatment with acid and a ketone or ester containing solvent or mixtures of said solvents or mixtures comprising said solvents.
- the compounds of formula (II) are treated with a base such as an alkali metal hydroxide in a suitable solvent such as an organic alcohol, preferably at elevated temperature.
- the reaction mixture is then treated with acid at elevated temperature in the presence of ketone or ester-containing solvents to give the compound of formula (I).
- the use of ketone and ester-containing solvents has surprisingly been found to promote crystal growth.
- Suitable solvents include ethyl acetate, n-propylacetate and MIBK and mixtures thereof.
- MIBK is used.
- the compound of formula (II) is treated with aqueous sodium hydroxide in n-propanol at elevated temperature, for example at about 68°C.
- the group R is phenyl, benzyl or a C 1-6 alkyl group such as methyl or ethyl, preferably R is C 1-6 alkyl, more preferably ethyl.
- R is hydrogen or is as defined in formula (II) by hydrogenation followed by treatment of the resulting amine with an acetylating agent such as acetyl chloride.
- R is an ester forming group as defined in formula (II).
- the hydrogenation can be carried out using standard conditions such as using a platinum catalyst under a hydrogen atmosphere at elevated pressure, e.g. a pressure of about 4 bar. This reduction can also be achieved with sodium dithionite.
- the resulting amine which is optionally isolated, for example by crystallisation from ethyl acetate/iso-hexane, is treated with acetyl chloride in a solvent such as ethyl acetate at ambient or elevated temperature, preferably at about 4O 0 C.
- R is as defined in formula (II) and X is halogen.
- R is ethyl and X is bromo such that the compound (V) is ethylbromoacetate.
- the reaction is carried out in the presence of a base such as potassium carbonate in water/acetonitrile.
- R 1 is chloro or a group that be converted to chloro such as amino or hydrogen.
- R 1 is chloro.
- the reaction of compounds (VI) and (VII) can be carried out using a suitable base such as sodium methoxide in methanol at elevated temperature, or a reagent such as trichloroisocyanuric acid in a solvent such as ethyl acetate or dichloromethane.
- R is hydrogen or is as defined in formula (II) by hydrogenation and subsequent reaction of the resulting amine using analogous conditions to those described above for the hydrogenation of compound (V).
- R is as defined in formula (II), more preferably R is ethyl.
- Compound (IX) can be prepared from a compound of formula (VI) by reaction with a compound such as ethylbromoacetate using analogous conditions to those described above for the reaction of compound (IV).
- compounds of formula (IH) can be prepared from compounds of formula (IX) as defined above by reacting with a compound of formula (VII) as defined above using analogous conditions to those described above for the reaction of compounds (VI) and (VII) using TCCA.
- Trichloroisocyanuric acid (450 mg, 1.9 mmol) was added to a solution of bis(p- chlorodiphenyl)disulphide (1.63 g, 5.7 mmol) in ethyl acetate (10 ml) at ambient temperature, resulting in the formation of an orange suspension.
- a suspension of 2-methyl-4-nitro-lH-indole (2.0 g, 11.3 mmol) in ethyl acetate 25 (10 ml) was added followed by an ethyl acetate rinse (4 ml), using water bath cooling to control the mild exotherm. Stirring was continued at ambient temperature for 40 minutes.
- Aqueous sodium bicarbonate (5%, 20 ml) and water (20 ml) were added and the resulting suspension stirred at ambient temperature for 45 minutes.
- the solid was collected by filtration, washed with water (2 x 10 ml), followed by ethyl acetate (2 x 10 ml) then dried in a vacuum oven at 45 0 C to provide 3-(4-chlorophenylsulfanyl)-2-methyl-4-nitro-lH-indole, 2.9 g (81%) as a yellow / brown solid.
- Aqueous sodium hydroxide (1 M, 11.7 kg) was added to a solution of [4-acetylamino- 3 -(4-chlorophenylsulfanyl)-2-methyl-lH-indol-l-yl] acetic acid, ethyl ester (2.20 kg, 5.28 mol) in 1-propanol (8.2 kg) and the mixture heated to 68 0 C. After cooling to 40 0 C, the solution was filtered, the filter rinsed with water (1 kg) then methyl zsobutyl ketone (17.8 kg) was added to the filtrate, which was re-heated to 80 0 C.
- Aqueous hydrochloric acid (1 M, 12.2 kg) was added over a period of 90 minutes then the mixture cooled to 19 0 C.
- the crystalline solid was collected by filtration, washed with water (2 x 4 kg), ethyl acetate (6 kg) then dried in a vacuum oven at 40 0 C to provide [4-acetylamino-3-(4-chlorophenylsulfanyi)-2- methyl-lH-indol-l-yl]acetic acid as white crystals, 1.87 kg (91%).
- Trichloroisocyanuric acid (0.30 g, 1.3 mmol) was added to a solution of bis(p- chlorophenyl)disulphide (1.08 g, 3.8 mmol) in ethyl acetate (10 ml) at ambient temperature is resulting in formation of a yellow suspension.
- a slurry of (4-nitro-2-methyl-lH-indol-l-yl)-acetic acid, ethyl ester (2.0 g, 7.6 mmol) in ethyl acetate (10 ml) was added followed by an ethyl acetate rinse (4 ml), using water bath cooling to control the mild exotherm. Stirring was continued for 35 minutes at ambient temperature.
- Aqueous sodium bicarbonate (5%, 20 ml) was added followed by water
- Trichloroisocyanuric acid (0.15 g, 0.65 mmol) was added to a solution of bis(p- chlorophenyl)disulphide (0.55 g, 1.9 mmol) in ethyl acetate (5.25 ml) at ambient temperature resulting in formation of a yellow suspension.
- Trichloroisocyanuric acid (0.13 g, 0.56 mmol) was added to a solution of bis(p- chlorophenyl)disulphide (0.47 g, 1.6 mmol) in ethyl acetate (5 ml) at ambient temperature resulting in formation of a yellow suspension.
- ethyl acetate 5 ml
- a slurry of (4-acetylamino-2 -methyl- lH-indol-l-yl)acetic acid (0.80 g, 3.2 mmol) in ethyl acetate (10 ml) was added followed by an ethyl acetate rinse (5 ml), using water bath cooling to control the mild exotherm.
- Aqueous sodium hydroxide (1 M, 25 ml) was added to a solution of (4-nitro-2-methyl- l/J-indol-l-yl)acetic acid, ethyl ester (5.0 g, 18.9 mmol) in ethanol (25 ml) and the mixture warmed to 40 0 C. After stirring for 70 mins at this temperature, the mixture was allowed to cool back to ambient temperature and aqueous hydrochloric acid (1 M, 27.5 ml) added causing precipitation of a solid.
- Trichloroisocyanuric acid (0.51 g, 2.2 mmol) was added to a solution of bis(p- chlorophenyl)disulphide (1.84 g, 6.4 mmol) in ethyl acetate (15 ml) at ambient temperature resulting in formation of a yellow suspension.
- ethyl acetate 15 ml
- a slurry of (4-nitro-2-methyl-lH-indol-l-yl)-acetic acid (3.0 g, 12.8 mmol) in ethyl acetate (30 ml) was added followed by an ethyl acetate rinse (6 ml). Stirring was continued for 40 minutes at ambient temperature.
- the product can be converted to a compound of formula (I) by reduction of the nitro group followed by amide formation using a process analogous to that given above for [4- Acetylamino-3-(4-chlorophenylsulfanyl)-2-methyl-lH ; -indol-l-yl] acetic acid, ethyl ester: method A
Abstract
Description
Claims
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06700281A EP1844012A2 (en) | 2005-01-13 | 2006-01-09 | Novel process for the preparation of substituted indoles |
US11/813,816 US7781598B2 (en) | 2005-01-13 | 2006-01-09 | Process for the preparation of substituted indoles |
AU2006205697A AU2006205697B2 (en) | 2005-01-13 | 2006-01-09 | Novel process for the preparation of substituted indoles |
JP2007550831A JP2008526936A (en) | 2005-01-13 | 2006-01-09 | New method for producing substituted indoles |
BRPI0606639-9A BRPI0606639A2 (en) | 2005-01-13 | 2006-01-09 | new process for the preparation of substituted indoles |
MX2007008348A MX2007008348A (en) | 2005-01-13 | 2006-01-09 | Novel process for the preparation of substituted indoles. |
CN2006800023115A CN101102999B (en) | 2005-01-13 | 2006-01-09 | Novel process for the preparation of substituted indoles |
NZ556147A NZ556147A (en) | 2005-01-13 | 2006-01-09 | Novel process for the preparation of substituted indoles |
CA002594391A CA2594391A1 (en) | 2005-01-13 | 2006-01-09 | Process for the preparation of substituted indoles |
IL183965A IL183965A0 (en) | 2005-01-13 | 2007-06-14 | Novel process for the preparation of substituted indoles |
NO20074047A NO20074047L (en) | 2005-01-13 | 2007-08-06 | New process for the production of substituted indoles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0500604.4A GB0500604D0 (en) | 2005-01-13 | 2005-01-13 | Novel process |
GB0500604.4 | 2005-01-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006075139A2 true WO2006075139A2 (en) | 2006-07-20 |
WO2006075139A3 WO2006075139A3 (en) | 2006-10-19 |
Family
ID=34203986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2006/000060 WO2006075139A2 (en) | 2005-01-13 | 2006-01-09 | Novel process for the preparation of substituted indoles |
Country Status (15)
Country | Link |
---|---|
US (1) | US7781598B2 (en) |
EP (1) | EP1844012A2 (en) |
JP (1) | JP2008526936A (en) |
KR (1) | KR20070104350A (en) |
CN (1) | CN101102999B (en) |
AU (1) | AU2006205697B2 (en) |
BR (1) | BRPI0606639A2 (en) |
CA (1) | CA2594391A1 (en) |
GB (1) | GB0500604D0 (en) |
IL (1) | IL183965A0 (en) |
MX (1) | MX2007008348A (en) |
NO (1) | NO20074047L (en) |
NZ (1) | NZ556147A (en) |
WO (1) | WO2006075139A2 (en) |
ZA (1) | ZA200705216B (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7687535B2 (en) | 2003-05-27 | 2010-03-30 | Astrazeneca Ab | Substituted 3-sulfur indoles |
US7709521B2 (en) | 2003-08-18 | 2010-05-04 | Astrazeneca Ab | Substituted indole derivatives for pharmaceutical compositions for treating respiratory diseases |
US7723373B2 (en) | 2002-07-17 | 2010-05-25 | Astrazeneca Ab | Indole-3-sulphur derivatives |
US7741360B2 (en) | 2006-05-26 | 2010-06-22 | Astrazeneca Ab | Bi-aryl or aryl-heteroaryl substituted indoles |
US7754735B2 (en) | 2002-05-30 | 2010-07-13 | Astrazeneca Ab | Substituted indoles |
US7781598B2 (en) | 2005-01-13 | 2010-08-24 | Astrazeneca Ab | Process for the preparation of substituted indoles |
WO2011004182A1 (en) | 2009-07-06 | 2011-01-13 | Astrazeneca Ab | Intermediates and processes for the preparation of 4- (acetylamino) ) -3- [ (4-chloro-phenyl) thio] -2-methyl-1h-indole-1-acetic acid |
WO2013088109A1 (en) | 2011-12-16 | 2013-06-20 | Oxagen Limited | Combination of crth2 antagonist and a proton pump inhibitor for the treatment of eosinophilic esophagitis |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE0303180D0 (en) * | 2003-11-26 | 2003-11-26 | Astrazeneca Ab | Novel compounds |
CN103288707B (en) * | 2013-05-28 | 2015-12-23 | 浙江大学 | A kind of preparation method of 3-benzene sulfydryl indole derivative |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004106302A1 (en) * | 2003-05-27 | 2004-12-09 | Astrazeneca Ab | Novel substituted 3-sulfur indoles |
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BE790679A (en) | 1971-11-03 | 1973-04-27 | Ici Ltd | INDOLE DERIVATIVES |
JPH0615542B2 (en) | 1986-07-22 | 1994-03-02 | 吉富製薬株式会社 | Pyrazolopyridine compound |
US5095031A (en) * | 1990-08-20 | 1992-03-10 | Abbott Laboratories | Indole derivatives which inhibit leukotriene biosynthesis |
WO1993005020A1 (en) | 1991-09-06 | 1993-03-18 | Merck & Co., Inc. | Indoles as inhibitors of hiv reverse transcriptase |
FR2692574B1 (en) | 1992-06-23 | 1995-06-23 | Sanofi Elf | 4-HYDROXY BENZENETHIO DERIVATIVES, THEIR PREPARATION AND THEIR USE FOR THE PREPARATION OF AMINOALKOXYBENZENESULFONYL DERIVATIVES. |
EP0686148A4 (en) | 1993-02-24 | 1996-02-07 | Merck & Co Inc | Inhibitors of hiv reverse transcriptase |
US5486525A (en) | 1993-12-16 | 1996-01-23 | Abbott Laboratories | Platelet activating factor antagonists: imidazopyridine indoles |
US5567711A (en) * | 1995-04-19 | 1996-10-22 | Abbott Laboratories | Indole-3-carbonyl and indole-3-sulfonyl derivatives as platelet activating factor antagonists |
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AU7962200A (en) | 1999-10-29 | 2001-05-14 | Wakunaga Pharmaceutical Co., Ltd | Novel indole derivatives and drugs containing the same as the active ingredient |
IL150388A0 (en) | 1999-12-24 | 2002-12-01 | Aventis Pharma Ltd | Azaindoles |
CA2406979A1 (en) | 2000-05-31 | 2001-12-06 | Astrazeneca Ab | Indole derivatives with vascular damaging activity |
US6878522B2 (en) | 2000-07-07 | 2005-04-12 | Baiyong Li | Methods for the identification of compounds useful for the treatment of disease states mediated by prostaglandin D2 |
US20040242589A1 (en) * | 2001-08-07 | 2004-12-02 | Bromidge Steven Mark | 3-arylsulfonyl-7-piperzinyl-indoles-benzofurans and -benzothiophenes with 5-ht6 receptor affinity for treating cns disorders |
US6933316B2 (en) * | 2001-12-13 | 2005-08-23 | National Health Research Institutes | Indole compounds |
ATE340792T1 (en) | 2002-02-01 | 2006-10-15 | Hoffmann La Roche | SUBSTITUTED INDOLES AS ALPHA-1 AGONISTS |
SE0200411D0 (en) | 2002-02-05 | 2002-02-05 | Astrazeneca Ab | Novel use |
SE0200356D0 (en) | 2002-02-05 | 2002-02-05 | Astrazeneca Ab | Novel use |
EP2423190A1 (en) | 2002-05-16 | 2012-02-29 | Shionogi&Co., Ltd. | Compounds Exhibiting PGD 2 Receptor Antagonism |
SE0201635D0 (en) | 2002-05-30 | 2002-05-30 | Astrazeneca Ab | Novel compounds |
TW200307542A (en) * | 2002-05-30 | 2003-12-16 | Astrazeneca Ab | Novel compounds |
SE0202241D0 (en) * | 2002-07-17 | 2002-07-17 | Astrazeneca Ab | Novel Compounds |
SE0202463D0 (en) | 2002-08-14 | 2002-08-14 | Astrazeneca Ab | Novel compounds |
BR0315681A (en) * | 2002-10-30 | 2005-09-06 | Merck Frosst Canada Inc | Compound and its pharmaceutically acceptable salts and hydrates, pharmaceutical composition, methods for treating prostaglandin d2-mediated diseases, treating nasal congestion, treating allergic asthma, and treating allergic rhinitis, compound or a salt thereof or pharmaceutically acceptable solvate, salt or hydrate of the compound, and use of a compound or a pharmaceutically acceptable salt or solvate thereof |
PL377464A1 (en) * | 2002-12-03 | 2006-02-06 | F. Hoffmann-La Roche Ag | Aminoalkoxyindoles as 5-ht6-receptor ligands for the treatment of cns-disorders |
SE0302232D0 (en) | 2003-08-18 | 2003-08-18 | Astrazeneca Ab | Novel Compounds |
CA2542716A1 (en) | 2003-10-14 | 2005-05-06 | Oxagen Limited | Compounds having crth2 antagonist activity |
SE0303180D0 (en) * | 2003-11-26 | 2003-11-26 | Astrazeneca Ab | Novel compounds |
GB0500604D0 (en) | 2005-01-13 | 2005-02-16 | Astrazeneca Ab | Novel process |
GB2422831A (en) | 2005-02-04 | 2006-08-09 | Oxagen Ltd | Pyrrolopyridines and their use in the treatment of diseases mediated by PGD2 at the CRTH2 receptor |
CN101454284A (en) * | 2006-05-26 | 2009-06-10 | 阿斯利康(瑞典)有限公司 | Bi-aryl or aryl-heteroaryl substituted indoles |
RU2008152763A (en) | 2006-06-08 | 2010-07-20 | Ньюроки А/С (Dk) | APPLICATION OF CANNABINOID RECEPTOR AGONISTS AS MEDICINES HYPOTHERMIC INDUCING FOR TREATMENT OF ISCHEMIA |
EP2040688B1 (en) | 2006-06-28 | 2014-04-02 | Sanofi | New cxcr2 inhibitors |
-
2005
- 2005-01-13 GB GBGB0500604.4A patent/GB0500604D0/en not_active Ceased
-
2006
- 2006-01-09 KR KR1020077015946A patent/KR20070104350A/en not_active Application Discontinuation
- 2006-01-09 BR BRPI0606639-9A patent/BRPI0606639A2/en not_active IP Right Cessation
- 2006-01-09 AU AU2006205697A patent/AU2006205697B2/en not_active Ceased
- 2006-01-09 JP JP2007550831A patent/JP2008526936A/en active Pending
- 2006-01-09 EP EP06700281A patent/EP1844012A2/en not_active Withdrawn
- 2006-01-09 CN CN2006800023115A patent/CN101102999B/en not_active Expired - Fee Related
- 2006-01-09 MX MX2007008348A patent/MX2007008348A/en active IP Right Grant
- 2006-01-09 CA CA002594391A patent/CA2594391A1/en not_active Abandoned
- 2006-01-09 US US11/813,816 patent/US7781598B2/en not_active Expired - Fee Related
- 2006-01-09 WO PCT/GB2006/000060 patent/WO2006075139A2/en active Application Filing
- 2006-01-09 NZ NZ556147A patent/NZ556147A/en not_active IP Right Cessation
-
2007
- 2007-06-14 IL IL183965A patent/IL183965A0/en unknown
- 2007-06-29 ZA ZA200705216A patent/ZA200705216B/en unknown
- 2007-08-06 NO NO20074047A patent/NO20074047L/en not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004106302A1 (en) * | 2003-05-27 | 2004-12-09 | Astrazeneca Ab | Novel substituted 3-sulfur indoles |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7754735B2 (en) | 2002-05-30 | 2010-07-13 | Astrazeneca Ab | Substituted indoles |
US8093278B2 (en) | 2002-05-30 | 2012-01-10 | Astrazeneca Ab | Substituted indoles |
US7723373B2 (en) | 2002-07-17 | 2010-05-25 | Astrazeneca Ab | Indole-3-sulphur derivatives |
US7687535B2 (en) | 2003-05-27 | 2010-03-30 | Astrazeneca Ab | Substituted 3-sulfur indoles |
EP2281815A1 (en) * | 2003-05-27 | 2011-02-09 | AstraZeneca AB | 4-(Acetylamino)-3-[(4-chlorophenyl)thio]-2-methyl-1H-indole-1-acetic acid ethyl ester intermediate compound |
US7709521B2 (en) | 2003-08-18 | 2010-05-04 | Astrazeneca Ab | Substituted indole derivatives for pharmaceutical compositions for treating respiratory diseases |
US7781598B2 (en) | 2005-01-13 | 2010-08-24 | Astrazeneca Ab | Process for the preparation of substituted indoles |
US7741360B2 (en) | 2006-05-26 | 2010-06-22 | Astrazeneca Ab | Bi-aryl or aryl-heteroaryl substituted indoles |
WO2011004182A1 (en) | 2009-07-06 | 2011-01-13 | Astrazeneca Ab | Intermediates and processes for the preparation of 4- (acetylamino) ) -3- [ (4-chloro-phenyl) thio] -2-methyl-1h-indole-1-acetic acid |
US8227622B2 (en) | 2009-07-06 | 2012-07-24 | Astrazeneca Ab | Pharmaceutical process and intermediates 714 |
AU2010270050B9 (en) * | 2009-07-06 | 2013-06-27 | Astrazeneca Ab | Intermediates and processes for the preparation of 4- (acetylamino) ) -3- [ (4-chloro-phenyl) thio] -2-methyl-1H-indole-1-acetic acid |
WO2013088109A1 (en) | 2011-12-16 | 2013-06-20 | Oxagen Limited | Combination of crth2 antagonist and a proton pump inhibitor for the treatment of eosinophilic esophagitis |
Also Published As
Publication number | Publication date |
---|---|
US20080051586A1 (en) | 2008-02-28 |
AU2006205697B2 (en) | 2009-01-22 |
CA2594391A1 (en) | 2006-07-20 |
MX2007008348A (en) | 2007-08-03 |
WO2006075139A3 (en) | 2006-10-19 |
IL183965A0 (en) | 2007-10-31 |
ZA200705216B (en) | 2008-09-25 |
BRPI0606639A2 (en) | 2009-07-07 |
AU2006205697A1 (en) | 2006-07-20 |
GB0500604D0 (en) | 2005-02-16 |
CN101102999B (en) | 2010-12-29 |
NZ556147A (en) | 2010-01-29 |
US7781598B2 (en) | 2010-08-24 |
CN101102999A (en) | 2008-01-09 |
NO20074047L (en) | 2007-08-06 |
EP1844012A2 (en) | 2007-10-17 |
KR20070104350A (en) | 2007-10-25 |
JP2008526936A (en) | 2008-07-24 |
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