2 beta-substituted-6-alkylidene penicillanic acid derivatives as beta-lactamase inhibitors
申请人:Research Corporation Technologies, Inc.
公开号:US20010021706A1
公开(公告)日:2001-09-13
Compound of formula I:
1
wherein R
1
, R
2
, R
3
, R
4
and n have any of the values defined in the specification, and their pharmaceutically acceptable salts, are useful for inhibiting &bgr;-lactamase enzymes, for enhancing the activity of &bgr;-lactam antibiotics, and for treating &bgr;-lactam resistant bacterial infections in a mammal. The invention also provides pharmaceutical compositions, processes for preparing compounds of formula I, and novel intermediates useful for the synthesis of compounds of formula I.
式 I 的化合物
1
其中 R
1
, R
2
, R
3
, R
4
和 n 具有说明书中定义的任一值,以及它们的药学上可接受的盐,可用于抑制&bgr;-内酰胺酶,增强&bgr;-内酰胺类抗生素的活性,以及治疗哺乳动物的&bgr;-内酰胺耐药细菌感染。本发明还提供了药物组合物、制备式 I 化合物的工艺以及用于合成式 I 化合物的新型中间体。