申请人:Imperial Chemical Industries PLC
公开号:US04492692A1
公开(公告)日:1985-01-08
A cephalosporin derivative of the formula: ##STR1## in which R.sup.0 is a hydrogen atom or a methyl radical, R.sup.1 is any one of the C-3 substituents from antibacterially-active cephalosporins known in the art; R.sup.2 is any one of the C-4 substituents from antibacterially-active cephalosporins known in the art; R.sup.3 is a hydrogen atom or a 1-6C alkoxy or 1-6C alkylthio radical; X.sup.1 is a sulphur or oxygen atom, a CH.sub.2 radical or a radical of the formula NR.sup.7 in which R.sup.7 is a hydrogen atom, a 1-6C alkyl, formyl or benzyl radical; X.sup.2 is a nitrogen atom or a radical of the formula N.sup..sym. -R.sup.7 ; R.sup.4 and R.sup.7, and R.sup.5 and R.sup.6 are a variety of substituents which are described in the specification; and the pharmaceutically-acceptable acid- or base-addition salts thereof. Pharmaceutical compositions, manufacturing processes and intermediates are also described.
一种头孢菌素衍生物的化学式:##STR1## 其中 R.sup.0 是氢原子或甲基基团,R.sup.1 是来自已知具有抗菌活性的头孢菌素的C-3取代基之一;R.sup.2 是来自已知具有抗菌活性的头孢菌素的C-4取代基之一;R.sup.3 是氢原子或1-6C烷氧基或1-6C烷硫基团;X.sup.1 是硫或氧原子,CH.sub.2基团或化学式NR.sup.7中的基团,其中R.sup.7是氢原子,1-6C烷基,甲酰基或苄基基团;X.sup.2 是氮原子或化学式N.sup..sym. -R.sup.7的基团;R.sup.4和R.sup.7,以及R.sup.5和R.sup.6是说明书中描述的各种取代基;以及其药学上可接受的酸盐或碱盐。还描述了制药组合物、制造过程和中间体。