发明名称 |
ANALOGIFREMGANGSMAATE FOR FREMSTILLING AV TERAPEUTISK AKTIVE PYRIDONCARBOXYLSYREDERIVATER. |
摘要 |
This invention provides novel pyridonecarboxylic acid derivatives having a quite high antimicrobial activity. The derivatives have the following formula: <IMAGE> [I] wherein R1, R2 and R3 represent each a hydrogen or C1-C6 alkyl group; R4 represents an ethyl, 2-fluoroethyl, vinyl, isopropyl, isopropenyl or cyclopropyl group; and X represents CH, C-F, C-Cl or N characterized in that R2 and R3 are not hydrogen at the same time. |
申请公布号 |
NO167090(B) |
申请公布日期 |
1991.06.24 |
申请号 |
NO19860002559 |
申请日期 |
1986.06.25 |
申请人 |
DAIICHI PHARMACEUTICAL CO. LTD. |
发明人 |
HAYAKAWA, ISAO;ATARASHI, SHOHGO |
分类号 |
A61K31/435;A61K31/47;A61P31/04;C07D401/04;C07D403/04;C07D471/04;(IPC1-7):C07D401/04;C07D401/14 |
主分类号 |
A61K31/435 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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