ATE157666T1 - Verfahren zur selektiven herstellung von hydratkristallen - Google Patents

Verfahren zur selektiven herstellung von hydratkristallen

Info

Publication number
ATE157666T1
ATE157666T1 AT91103032T AT91103032T ATE157666T1 AT E157666 T1 ATE157666 T1 AT E157666T1 AT 91103032 T AT91103032 T AT 91103032T AT 91103032 T AT91103032 T AT 91103032T AT E157666 T1 ATE157666 T1 AT E157666T1
Authority
AT
Austria
Prior art keywords
methyl
selective production
hydrate crystals
benzoxazine
pyrido
Prior art date
Application number
AT91103032T
Other languages
English (en)
Inventor
Yukio Sato
Atsushi Sato
Tatsuro Sumikawa
Tazuo Uemura
Original Assignee
Daiichi Seiyaku Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daiichi Seiyaku Co filed Critical Daiichi Seiyaku Co
Application granted granted Critical
Publication of ATE157666T1 publication Critical patent/ATE157666T1/de

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D498/00Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D498/02Heterocyclic 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
    • C07D498/06Peri-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)
AT91103032T 1990-03-01 1991-02-28 Verfahren zur selektiven herstellung von hydratkristallen ATE157666T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5045490 1990-03-01

Publications (1)

Publication Number Publication Date
ATE157666T1 true ATE157666T1 (de) 1997-09-15

Family

ID=12859314

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91103032T ATE157666T1 (de) 1990-03-01 1991-02-28 Verfahren zur selektiven herstellung von hydratkristallen

Country Status (13)

Country Link
US (1) US5545737A (de)
EP (1) EP0444678B1 (de)
KR (1) KR970000045B1 (de)
AT (1) ATE157666T1 (de)
DE (1) DE69127485T2 (de)
ES (1) ES2106739T3 (de)
GR (1) GR3025276T3 (de)
HK (1) HK1002730A1 (de)
IE (1) IE910692A1 (de)
IN (1) IN172207B (de)
PT (1) PT96917B (de)
TW (1) TW208013B (de)
YU (1) YU48328B (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
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
PE20011061A1 (es) 2000-02-01 2001-11-20 Procter & Gamble Cristalizacion selectiva del acido 3-piridil-1-hidroxi-etiliden-1,1-bisfosfonico sodio como el hemipentahidrato o el monohidrato
US7425628B2 (en) * 2001-10-03 2008-09-16 Teva Pharmaceutical Industries Ltd. Methods for the purification of levofloxacin
IL161164A0 (en) 2001-10-03 2004-08-31 Teva Pharma Preparation of levofloxacin and forms thereof
IL162172A0 (en) * 2001-11-29 2005-11-20 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
WO2006030452A1 (en) * 2004-09-17 2006-03-23 Matrix Laboratories Ltd An 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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE203719C (de) * 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
DK170473B1 (da) * 1985-06-20 1995-09-11 Daiichi Seiyaku Co S(-)-pyridobenzoxazinforbindelser
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

Also Published As

Publication number Publication date
GR3025276T3 (en) 1998-02-27
ES2106739T3 (es) 1997-11-16
KR970000045B1 (ko) 1997-01-04
DE69127485T2 (de) 1998-04-02
KR910016748A (ko) 1991-11-05
IE910692A1 (en) 1991-09-11
PT96917B (pt) 1998-07-31
PT96917A (pt) 1991-10-31
TW208013B (de) 1993-06-21
HK1002730A1 (en) 1998-09-11
EP0444678B1 (de) 1997-09-03
IN172207B (de) 1993-05-01
EP0444678A1 (de) 1991-09-04
YU48328B (sh) 1998-05-15
DE69127485D1 (de) 1997-10-09
YU35491A (sh) 1994-04-05
US5545737A (en) 1996-08-13

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
EEIH Change in the person of patent owner
EELA Cancelled due to lapse of time