申请人:Bristol-Myers Company
公开号:US04751295A1
公开(公告)日:1988-06-14
7-[2-(5-Amino-1,2,4-thiadiazol-3-yl)-2-(substituted)-iminoacetamido]-3-[3-( quaternaryammonio)-1-propen-1-yl]-3-cephem-4-carboxylates of the formula ##STR1## in which R.sup.1 and R.sup.2 are defined herein and --.sup..sym. N.tbd.Q is a quaternary ammonio group as defined herein, and salts, solvates, hydrates and esters thereof, are potent antibacterial agents. Processes for their preparation and intermediates in such processes are described.
公式为##STR1##的7-[2-(5-氨基-1,2,4-噻二唑-3-基)-2-(取代基)-亚氨基乙酰氨基]-3-[3-(季铵基)-1-丙烯基]-3-头孢烯-4-羧酸盐,溶剂合物,水合物和酯,其中R.sup.1和R.sup.2的定义见此处,--.sup..sym. N.tbd.Q是一个季铵基,如此处所定义,是一种强效的抗菌剂。描述了其制备过程和在这些过程中的中间体。