AR008923A1 - Proceso para la produccion de la forma (i) del monoclorhidrato anhidro de terazosina - Google Patents
Proceso para la produccion de la forma (i) del monoclorhidrato anhidro de terazosinaInfo
- Publication number
- AR008923A1 AR008923A1 ARP970105625A ARP970105625A AR008923A1 AR 008923 A1 AR008923 A1 AR 008923A1 AR P970105625 A ARP970105625 A AR P970105625A AR P970105625 A ARP970105625 A AR P970105625A AR 008923 A1 AR008923 A1 AR 008923A1
- Authority
- AR
- Argentina
- Prior art keywords
- carbon atoms
- linear
- aliphatic
- solvent
- terazosin
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/12—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
Se revela un proceso para la produccion de la forma (I) del monohidrato anhidro de la 1-(4-amino-6,7-dimetoxi-2-quinazolinil)-4-(tetrahidro-2-furoil)piperazina (Terazosina) en la cual el monoclorhidrato dihidratado de la 1-(4-amino-6,7-dimetoxi-2-quinazolinil)-4-(tetrahidro-2-furoil)piperazina esrápidamente adicionado bajo enérgica agitacion a una mezcla en ebullicion que consiste en metanol y un solvente seleccionado ente alcoholes lineales oramificados de 2 a 6 átomos de carbono,ésteres de los ácidos carboxílico de 1 a 8 átomos de carbono con los alcoholes, lineales o ramificados, de 1 a 8átomos de carbono, cetonas alifáticas de 3 a 8 átomos de carbono, éteres alifáticos, lineales, ramificados o cíclicos, de 4 a 8átomos de carbono,amidas alifáticas y los nitrilos alifáticos, y el calentamiento a la temperatura de ebullicion bajo enérgica agitacion es mantenido durante unintervalo de tiempo de 30 minutos a 3 horas y la mezcla de metanol/solventees parcialmente eliminada por destilacion, y subsiguientemente la suspensiones enfriada a 20°C y filtrada, y el solido obtenido es lavado con el solvente y secado en estufa bajo vacío a una temperatura de entre 70°C y 75°C duranteun intervalo de tiempo de 12 a 24 horas.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT96BO000612A IT1286790B1 (it) | 1996-11-29 | 1996-11-29 | Processo per la produzione della forma i del terazosin monocloridrato anidro |
Publications (1)
Publication Number | Publication Date |
---|---|
AR008923A1 true AR008923A1 (es) | 2000-02-23 |
Family
ID=11341745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP970105625A AR008923A1 (es) | 1996-11-29 | 1997-11-28 | Proceso para la produccion de la forma (i) del monoclorhidrato anhidro de terazosina |
Country Status (7)
Country | Link |
---|---|
US (1) | US5856482A (es) |
EP (1) | EP0845461B1 (es) |
AR (1) | AR008923A1 (es) |
AT (1) | ATE231146T1 (es) |
CA (1) | CA2219615A1 (es) |
DE (1) | DE69718426T2 (es) |
IT (1) | IT1286790B1 (es) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4026894A (en) * | 1975-10-14 | 1977-05-31 | Abbott Laboratories | Antihypertensive agents |
GB1591490A (en) * | 1977-08-04 | 1981-06-24 | Abbott Lab | 1-(4-amino-6,7-dimethoxy-2-quinazolinyl)-4-(2-tetrahydrofuroyl)piperazine hydrochloride dihydrate |
JP2652272B2 (ja) * | 1990-12-31 | 1997-09-10 | 住化ファインケム株式会社 | 1−(4−アミノ−6,7−ジメトキシ−2−キナゾリニル)−4−(2−テトラヒドロフロイル)ピペラジン塩酸塩の新規な結晶体および該結晶体の製造方法 |
CA2077252C (en) * | 1992-08-31 | 2001-04-10 | Khashayar Karimian | Methods of making ureas and guanidines, and intermediates therefor |
US5294615A (en) * | 1993-04-29 | 1994-03-15 | Abbott Laboratories | Terazosin polymorph and pharmaceutical composition |
US5412095A (en) * | 1993-04-29 | 1995-05-02 | Abbott Laboratories | Terazosin monohydrochloride and processes and intermediate for its production |
US5587377A (en) * | 1995-10-24 | 1996-12-24 | Invamed, Inc. | Terazosin crystalline polymorph and pharmaceutical compositions thereof |
DE19546573A1 (de) * | 1995-12-13 | 1997-06-19 | Uetikon Chemie Gmbh | Kristallines Polymorph von Terazosin-Hydrochlorid, sowie Verfahren zu seiner Herstellung |
-
1996
- 1996-11-29 IT IT96BO000612A patent/IT1286790B1/it active IP Right Grant
-
1997
- 1997-10-17 DE DE69718426T patent/DE69718426T2/de not_active Expired - Fee Related
- 1997-10-17 EP EP97118049A patent/EP0845461B1/en not_active Expired - Lifetime
- 1997-10-17 AT AT97118049T patent/ATE231146T1/de not_active IP Right Cessation
- 1997-10-21 US US08/957,976 patent/US5856482A/en not_active Expired - Fee Related
- 1997-10-29 CA CA002219615A patent/CA2219615A1/en not_active Abandoned
- 1997-11-28 AR ARP970105625A patent/AR008923A1/es not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0845461A1 (en) | 1998-06-03 |
ATE231146T1 (de) | 2003-02-15 |
IT1286790B1 (it) | 1998-07-17 |
CA2219615A1 (en) | 1998-05-29 |
DE69718426T2 (de) | 2003-09-25 |
ITBO960612A0 (it) | 1996-11-29 |
DE69718426D1 (de) | 2003-02-20 |
EP0845461B1 (en) | 2003-01-15 |
US5856482A (en) | 1999-01-05 |
ITBO960612A1 (it) | 1998-05-29 |
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Legal Events
Date | Code | Title | Description |
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FA | Abandonment or withdrawal |