HK1002730A1 - Process for selectively producing hydrate crystals - Google Patents
Process for selectively producing hydrate crystals Download PDFInfo
- Publication number
- HK1002730A1 HK1002730A1 HK98101536A HK98101536A HK1002730A1 HK 1002730 A1 HK1002730 A1 HK 1002730A1 HK 98101536 A HK98101536 A HK 98101536A HK 98101536 A HK98101536 A HK 98101536A HK 1002730 A1 HK1002730 A1 HK 1002730A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- methyl
- monohydrate
- solvent
- hemihydrate
- carboxylic acid
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D498/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D498/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
- C07D498/06—Peri-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5045490 | 1990-03-01 | ||
| JP50454/90 | 1990-03-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| HK1002730B HK1002730B (en) | 1998-09-11 |
| HK1002730A1 true HK1002730A1 (en) | 1998-09-11 |
Family
ID=12859314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HK98101536A HK1002730A1 (en) | 1990-03-01 | 1998-02-27 | Process for selectively producing hydrate crystals |
Country Status (13)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA946853B (en) * | 1993-09-10 | 1995-04-24 | Daiichi Seiyaku Co | Crystals of antimicrobial compound. |
| US6562974B2 (en) | 2000-02-01 | 2003-05-13 | The Procter & Gamble Company | Process for making geminal bisphosphonates |
| US6410520B2 (en) | 2000-02-01 | 2002-06-25 | The Procter & Gamble Company | Selective crystallization of 3-pyridyl-1-hydroxyethylidene-1, 1-bisphosphonic acid sodium as the hemipentahydrate or monohydrate |
| ES2272781T5 (es) * | 2001-10-03 | 2010-04-06 | Teva Pharmaceutical Industries Ltd. | Preparacion de levofloxacino hemihidratado. |
| US7425628B2 (en) * | 2001-10-03 | 2008-09-16 | Teva Pharmaceutical Industries Ltd. | Methods for the purification of levofloxacin |
| HUP0500285A3 (en) * | 2001-11-29 | 2009-03-30 | Teva Pharma | Methods for the purification of levofloxacin |
| WO2004055025A1 (en) * | 2002-12-16 | 2004-07-01 | Ranbaxy Laboratories Limited | Pure levofloxacin hemihydrate and processes for preparation thereof |
| KR100704641B1 (ko) * | 2004-07-21 | 2007-04-06 | 주식회사유한양행 | 고순도의 레보플록사신 제조방법 |
| EP1797101A4 (en) * | 2004-09-17 | 2009-11-11 | Matrix Lab Ltd | IMPROVED PROCESS FOR THE PREPARATION OF LEVOFLOXACIN HEMIHYDRATE |
| US20070244318A1 (en) * | 2004-11-08 | 2007-10-18 | Rao Davuluri R | Process for the Preparation of Levofloxacin Hemihydrate |
| ES2255871B1 (es) * | 2004-12-31 | 2007-08-16 | Quimica Sintetica, S.A. | Procedimiento para la obtencion de levofloxacino exento de sales. |
| CN1321121C (zh) * | 2005-04-21 | 2007-06-13 | 浙江医药股份有限公司新昌制药厂 | 左氧氟沙星制备及后处理方法 |
| US7964723B2 (en) * | 2008-08-02 | 2011-06-21 | Apeloa-Kangyu | And practical process for exclusively producing (S)-9-fluoro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-2,3-dihydro-7H-pyrido-[1,2,3,de][1,4]benzoxazine-6-carboxylic acid hemihydrate |
| CN101863904A (zh) * | 2010-07-08 | 2010-10-20 | 浙江东亚药业有限公司 | 一种高纯度左氧氟沙星半水合物的制备方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE203719C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1907-11-02 | 1908-10-20 | ||
| JPS5746986A (en) * | 1980-09-02 | 1982-03-17 | Dai Ichi Seiyaku Co Ltd | Pyrido(1,2,3-de)(1,4)benzoxazine derivative |
| JPS57131769A (en) * | 1981-02-10 | 1982-08-14 | Kissei Pharmaceut Co Ltd | 4-(1-imidazolylmethyl)cinnamic acid hydrochloride monohydrate, its preparation and drug containing the same |
| JPS5843977A (ja) * | 1981-09-09 | 1983-03-14 | Dai Ichi Seiyaku Co Ltd | ピリドベンズオキサジン誘導体の製法 |
| JPS60226855A (ja) * | 1984-04-26 | 1985-11-12 | Nippon Kayaku Co Ltd | Ｎ−ベンジルオキシカルボニル−ｌ−スレオニンアミド・１／２水和物およびその製造法 |
| ZA864518B (en) * | 1985-06-20 | 1987-03-25 | Daiichi Seiyaku Co | Optically active pyridobenzoxazine derivatives and intermediates thereof |
| NO166131C (no) * | 1985-06-20 | 1991-06-05 | Daiichi Seiyaku Co | Analogifremgangsmaate for fremstilling av s(-)-pyridobenzoksazinforbindelser. |
| MY104139A (en) * | 1988-08-09 | 1994-02-28 | Daiichi Seiyaku Co | Antimicrobial agent for animals |
| FI82240C (fi) * | 1988-10-20 | 1991-02-11 | Huhtamaeki Oy | Foerfarande foer framstaellning av farmakologiskt vaerdefullt s-timolol-hemihydrat. |
| MTP1076B (en) * | 1990-01-12 | 1991-09-30 | Ciba Geigy Ag | Hemihydrate |
-
1990
- 1990-03-13 TW TW080108336A patent/TW208013B/zh active
-
1991
- 1991-02-28 ES ES91103032T patent/ES2106739T3/es not_active Expired - Lifetime
- 1991-02-28 AT AT91103032T patent/ATE157666T1/de not_active IP Right Cessation
- 1991-02-28 EP EP91103032A patent/EP0444678B1/en not_active Expired - Lifetime
- 1991-02-28 KR KR1019910003413A patent/KR970000045B1/ko not_active Expired - Lifetime
- 1991-02-28 IN IN175/MAS/91A patent/IN172207B/en unknown
- 1991-02-28 PT PT96917A patent/PT96917B/pt not_active IP Right Cessation
- 1991-02-28 YU YU35491A patent/YU48328B/sh unknown
- 1991-02-28 DE DE69127485T patent/DE69127485T2/de not_active Expired - Lifetime
- 1991-03-01 IE IE069291A patent/IE910692A1/en not_active IP Right Cessation
-
1994
- 1994-01-18 US US08/182,364 patent/US5545737A/en not_active Expired - Lifetime
-
1997
- 1997-11-05 GR GR970402914T patent/GR3025276T3/el unknown
-
1998
- 1998-02-27 HK HK98101536A patent/HK1002730A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| TW208013B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1993-06-21 |
| DE69127485D1 (de) | 1997-10-09 |
| YU35491A (sh) | 1994-04-05 |
| IE910692A1 (en) | 1991-09-11 |
| PT96917B (pt) | 1998-07-31 |
| DE69127485T2 (de) | 1998-04-02 |
| GR3025276T3 (en) | 1998-02-27 |
| YU48328B (sh) | 1998-05-15 |
| ES2106739T3 (es) | 1997-11-16 |
| KR910016748A (ko) | 1991-11-05 |
| PT96917A (pt) | 1991-10-31 |
| EP0444678A1 (en) | 1991-09-04 |
| US5545737A (en) | 1996-08-13 |
| EP0444678B1 (en) | 1997-09-03 |
| IN172207B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1993-05-01 |
| KR970000045B1 (ko) | 1997-01-04 |
| ATE157666T1 (de) | 1997-09-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PF | Patent in force | ||
| PE | Patent expired |
Effective date: 20110227 |