申请人:Merck & Co., Inc.
公开号:US05137884A1
公开(公告)日:1992-08-11
N-tetrazolyl beta-lactams of the Formula: ##STR1## and the pharmaceutically acceptable salts thereof wherein R.sup.2 is hydrogen, alkyl having 1 to 6 carbon atoms or carboalkoxy having 2 to 7 carbon atoms; and Z is ##STR2## and W is ##STR3## thus forming a zwitterion, or Z is ##STR4## wherein R.sup.1 is benzyl, phenyloxymethyl or ##STR5## wherein Y is alkoxy or substituted alkoxy having 1 to 6 carbon atoms wherein the substituent on the alkoxy group is --COOH; and W is ##STR6## wherein R.sup.3 is H, M or --CH.sub.2 COOM, wherein M is a pharmaceutically acceptable cation are disclosed. The compounds are useful as antibiotics.
公式:##STR1##的N-四唑基β-内酰胺及其药学上可接受的盐,其中R.sup.2是氢,有1至6个碳原子的烷基或有2至7个碳原子的羧烷氧基; 而Z是##STR2##和W是##STR3##从而形成一个离子复合物,或者Z是##STR4##其中R.sup.1是苄基,苯氧甲基或##STR5##其中Y是有1至6个碳原子的烷氧基或取代烷氧基,其中烷氧基上的取代基是--COOH;而W是##STR6##其中R.sup.3是H,M或--CH.sub.2 COOM,其中M是药学上可接受的阳离子。所述化合物可用作抗生素。