申请人:Pfizer, Inc.
公开号:US04457924A1
公开(公告)日:1984-07-03
Useful antibacterial agents in which a penicillin and/or a beta-lactamase inhibitor are linked via 1,1-alkanediol dicarboxylates are of the formula ##STR1## where A is the residue of certain dicarboxyic acids, R.sup.3 is H or (C.sub.1 -C.sub.3), n is zero or 1 such that when n is zero R is P or B and R.sup.1 is the residue of certain esters, H or a salt thereof; and when n is 1, one of R and R.sup.1 is P and the other is B, and P is ##STR2## where R.sup.2 is H or certain acyl groups, and B is the residue of a beta-lactamase inhibiting carboxylic acid; a method for their use, pharmaceutical compositions thereof and intermediates useful in their production.
有用的抗菌剂,其中通过1,1-烷二醇二羧酸酯连接了青霉素和/或β-内酰胺酶抑制剂,其化学公式为##STR1##,其中A是某些二羧酸的残基,R.sup.3是H或(C.sub.1-C.sub.3),n是0或1,当n为0时,R是P或B,R.sup.1是某些酯的残基,H或其盐;当n为1时,R和R.sup.1中的一个为P,另一个为B,P为##STR2##,其中R.sup.2是H或某些酰基团,B是β-内酰胺酶抑制羧酸的残基;其使用方法、药物组合物及其生产中有用的中间体。