This invention relates to certain bicyclic 6-alkylidene penems which act as a inhibitor of class-D enzymes. β-Lactamases hydrolyze β-lactam antibiotics, and as such serve as the primary cause of bacterial resistance. The compounds of the present invention when combined with β-lactam antibiotics will provide an effective treatment against life threatening bacterial infections.
In accordance with the present invention there are provided compounds of general formula I or a pharmaceutically acceptable salt or in vivo hydrolyzable ester R
5
thereof:
wherein: One of A and B denotes hydrogen and the other an optionally substituted fused bicyclic heteroaryl group; and X═O or S.
这项发明涉及某些具有双环6-烷基亚
烯基
青霉素结构的化合物,其作为D类酶的
抑制剂。β-内
酰胺酶
水解β-内
酰胺类
抗生素,因此是细菌耐药的主要原因。本发明的化合物与β-内
酰胺类
抗生素结合后,将提供一种有效的治疗方法,用于治疗威胁生命的细菌感染。根据本发明,提供了一般式I的化合物,或其药学上可接受的盐或体内可
水解的
酯R5:其中:A和B中的一个表示
氢,另一个表示可选择取代的融合双环杂环芳基团;X=O或S。