申请人:Shionogi & Co., Ltd.
公开号:US04101658A1
公开(公告)日:1978-07-18
Antibacterial cephalosporins of the following formula: ##STR1## WHEREIN A and B each is a hydrogen or an amino protecting group; X is a hydroxy or a carboxy protecting group; Y is a hydrogen, halogen, alkyl, alkoxy, or an alkylthio; R is a hydrogen or an alkyl; Z is a group of the formula ##STR2## (in which R.sup.1 and R.sup.2 are the same or different and are a hydrogen, optionally substituted hydrocarbon group, organic acyl, or a group of the formula ##STR3## respectively, in which M and M' are the same or different and are an oxygen or sulfur; R.sup.3 is a hydrocarbon group; R.sup.1 and R.sup.2 can be combined together directly or through a hetero atom); m is 0 or 1; and the broken line shows the presence of a double bond at position 2 or 3, preparable from the compounds shown by the above formula in which Z is an oxygen by treatment with a compound shown by the formula H.sub.2 Z; and pharmaceuticals containing these compounds.
以下的化学式代表抗菌头孢菌素:其中A和B分别是氢原子或氨基保护基团;X是羟基或羧基保护基团;Y是氢原子、卤素、烷基、烷氧基或烷硫基;R是氢原子或烷基;Z是下列式的基团(其中R.sup.1和R.sup.2相同或不同,是氢原子、可选择取代的碳氢基团、有机酰基,或下列式的基团(其中M和M'相同或不同,是氧原子或硫原子;R.sup.3是碳氢基团;R.sup.1和R.sup.2可以直接结合或通过杂原子连接);m是0或1;虚线表示位置2或3处有双键存在,可以通过上述式中Z为氧原子的化合物与式为H.sub.2 Z的化合物处理制备;以及含有这些化合物的药物。