| 摘要 |
Cephalosporin derivatives, useful as antibiotics, have the general formula (I) <CHEM> wherein R min is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms or a pharmaceutically acceptable cation and R is -CH2COOR min , -CH2CH2SR min , <CHEM> -CH2CH2COOR min or -CH(CH3)2 wherein R min is as defined above. |
