| 摘要 |
1. Cephalosporin derivatives of the general formula see diagramm : EP0000005,P15,F1 wherein R represents furyl, thienyl or phenyl optionally substituted by halogen, hydroxy, lower alkoxy or lower alkyl, R1 represents lower alkyl or aminocarbonylmethyl and X represents a group of the formulae see diagramm : EP0000005,P15,F2 see diagramm : EP0000005,P15,F3 see diagramm : EP0000005,P15,F4 in which one of the two symbols R2 and R3 or R4 and R5 represents hydrogen and the other represents lower alkyl, carboxymethyl or sulphomethyl, as well as salts of said compounds and hydrates of said salts. |
