摘要 |
<p>A cephalosporin derivative represented by the formula <CHEM> wherein R<1> is a hydrogen atom or a protecting group of the amino group, R<2> is a hydrogen atom or a protecting group of the hydroxyl group, R<3> is a hydrogen atom or a protecting group of the carboxyl group, X is a halogen atom, a cyano group, a vinyl group, a lower alkoxy group having 1 to 4 carbon atoms or a lower alkylthio group having 1 to 4 carbon atoms and n is an integer of 1 to 3, and a non-toxic salt thereof are useful as antibacterial agents for oral administration.</p> |
申请人 |
TAISHO PHARMACEUTICAL CO., LTD., TOKIO/TOKYO, JP |
发明人 |
YOKOO, CHIHIRO, GYODA-SHI, JP;ONODERA, AKIRA, KUKI-SHI, JP;FUKUSHIMA, HIROSHI, MINAMISAITAMA-GUN SAITAMA-KEN, JP;WATANABE, YOSHIAKI, KODAIRA-SHI, JP;SOTA, KAORU, TOKOROZAWA-SHI, JP |