Title:
セフディニルの製造方法
Document Type and Number:
Japanese Patent JP3948628
Kind Code:
B2
Abstract:
PCT No. PCT/KR96/00250 Sec. 371 Date May 18, 1998 Sec. 102(e) Date May 18, 1998 PCT Filed Dec. 26, 1996 PCT Pub. No. WO97/24358 PCT Pub. Date Jul. 10, 1997The present invention relates to a novel crystalline cefdinir intermediate having formula (II) which can be used very usefully for preparing a cephalosporin antibiotics, cefdinir, in which Ph represents phenyl, p-TsOH represents p-toluenesulfonic acid, and DMAC represents N,N-dimethylacetamide, to a process for preparation thereof and to a process for preparing cefdinir using the compound of formula (II). According to the present invention, cefdinir can be prepared in an excellent color and purity and with a good yield.
Inventors:
Gwangsun
Chang Young Kill
Jeong Jung Pill
Kou Jun Hyun
Chang Young Kill
Jeong Jung Pill
Kou Jun Hyun
Application Number:
JP52423097A
Publication Date:
July 25, 2007
Filing Date:
December 26, 1996
Export Citation:
Assignee:
Hammi Pharmaceutical Shio., LDT.
International Classes:
C07D501/04; A61K31/00; A61K31/545; A61K31/546; A61P31/00; A61P31/04; C07D501/00; C07D501/18; C07D501/22
Domestic Patent References:
| JP63250383A |
Attorney, Agent or Firm:
Nozomi Watanabe
Haruko Sanwa
Haruko Sanwa