Title:
新規チアゾール化合物およびその製造方法
Document Type and Number:
Japanese Patent JP4022070
Kind Code:
B2
Abstract:
The present invention relates to a new crystalline aminothiazole derivative represented by the following formula (I) which is very useful for the preparation of cephalosporin antibiotics, including ceftazidime and cefixime, etc:wherein R1 and R2 are the same or different and independently represent H, an alkyl group of 1 to 4 carbon atoms, or a cycloalkyl group of 3 to 5 carbon atoms, X represents chlorine or bromine, and the acid in the acid addition salt represents an inorganic acid, such as hydrochloric acid, hydrobromic acid, sulfuric acid, or perchloric acid, or an organic acid, such as formic acid, acetic acid, trifluoroacetic acid, propionic acid, methanesulfonic acid, or benzenesulfonic acid.
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Inventors:
You Dae Chu
Yo Sung Won
Shin Dong Kyun
Lee Munki
Park Misoon
Lee Young Souk
Song Young Souk
Yo Sung Won
Shin Dong Kyun
Lee Munki
Park Misoon
Lee Young Souk
Song Young Souk
Application Number:
JP2001565348A
Publication Date:
December 12, 2007
Filing Date:
March 06, 2001
Export Citation:
Assignee:
Hammi Fine Chemicals Company Limited
International Classes:
C07D277/20; C07D277/30; C07D277/38; C07D277/40; C07D501/46
Domestic Patent References:
| JP58194871A | ||||
| JP4261183A | ||||
| JP5202061A | ||||
| JP8151386A |
Foreign References:
| US4258041 |
Attorney, Agent or Firm:
Norio Saeki