A compound of the general formula: ##STR1## wherein R.sup.0 is hydrogen, a nitrogen-containing heterocyclic group, an acyl group or an amino-protective group; A is S, S.fwdarw.O, O or CH.sub.2 ; R.sup.4 is hydrogen, methoxy group or formamido group; R.sup.13 is hydrogen, methyl, hydroxyl or a halogen; and A is an optionally substituted condensed cyclic group formed by combining an imidazole or pyrazole ring with 5- or 6-membered nitrogen-containing aromatic heterocyclic ring to share a C-N bond with each other, or a salt or ester thereof. and a process for preparing the same and a pharmaceutical composition thereof are disclosed.
通式为:##STR1## 其中 R.sup.0 是氢、含氮杂环基团、酰基或
氨基保护基团;A 是 S、S.fwdarw.O、O 或 CH.sub.2;R.sup.4 是氢、甲氧基基团或甲酰胺基团;R.sup.13 是氢、甲基、羟基或卤素;A 是通过将
咪唑或
吡唑环与5-或6-成员含氮芳香杂环环共用一个C-N键而形成的可选择取代的紧凑环基团,或其盐或酯。公开了一种制备该化合物的方法以及其制药组合物。