| 摘要 |
<p>New cephem compounds of formula (I) wherein R1 is amino or protected amino, Z is N or CH, R2 is hydrogen or an organic group, R3 is lower alkyl, R4 is lower alkyl, A is lower alkylene, R5 is hydroxy or protected hydroxy, and R6 is carboxy, protected carboxy, etc., and pharmaceutically acceptable salts thereof which are useful as a medicament.</p> |
