申请人:Hoffmann-La Roche Inc.
公开号:US05637579A1
公开(公告)日:1997-06-10
The present invention discloses compounds having the formula ##STR1## wherein one of R.sup.1 and R.sup.2 is --COR.sup.4, --CN, --CH.sub.2 R.sup.5, halogen, --CH.dbd.CHR.sup.6 or Q and the other is hydrogen or lower alkyl or both R.sup.1 and R.sup.2 together form a .gamma.-lactam ring, R.sup.3 is hydrogen, lower alkyl, aryl-alkyl, allyl or a residue which is cleavable in vivo, R.sup.4 is hydrogen, lower alkyl, lower alkoxy, benzyloxy, amino, lower alkylamino or lower alkyl-lower alkoxyamino, R.sup.5 is hydroxy, --OCONHR.sup.7, --OCONH.sub.2 or a five- or six-membered hetero-aromatic ring which contains N,S and/or O and which is linked via a nitrogen atom, R.sup.6 is --CN or CHO, R.sup.7 is --COCH.sub.2 Cl, Q is a five- or six-membered hetero-aromatic ring which contains N, S and/or O and n is 0, 1 or 2, and the pharmaceutically compatible salts thereof. These compounds are good .beta.-lactamase inhibitors. They can be used for the prevention or treatment of bacterial infections, optionally together with a .beta.-lactam antibiotic.
本发明公开了具有以下式子的化合物:##STR1## 其中R.sup.1和R.sup.2中的一个是--COR.sup.4,--CN,--CH.sub.2 R.sup.5,卤素,--CH.dbd.CHR.sup.6或Q,另一个是氢或较低的烷基,或者R.sup.1和R.sup.2两者共同形成一个.gamma.-内酰胺环,R.sup.3是氢,较低的烷基,芳基-烷基,烯丙基或在体内可被裂解的残基,R.sup.4是氢,较低的烷基,较低的烷氧基,苄氧基,氨基,较低的烷基氨基或较低的烷氧基氨基,R.sup.5是羟基,--OCONHR.sup.7,--OCONH.sub.2或含有N、S和/或O的五元或六元杂环芳香环,通过氮原子连接,R.sup.6是--CN或CHO,R.sup.7是--COCH.sub.2 Cl,Q是含有N、S和/或O的五元或六元杂环芳香环,n为0、1或2,以及其药学上相容的盐。这些化合物是良好的β-内酰胺酶抑制剂。它们可用于预防或治疗细菌感染,可与β-内酰胺类抗生素一起使用。