This invention relates to certain tricyclic 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 formula I which are useful for treatment of bacterial infections having class-D enzymes associated therewith:
wherein: One of A and B denotes hydrogen and the other an optionally substituted fused tricyclic heteroaryl group; and X is S or O.
本发明涉及某些
三环6-烷基亚甲基青霉烯,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,将提供有效的治疗危及生命的细菌感染的方法。根据本发明,提供了式I的化合物,其对具有D类酶的细菌感染的治疗有用:其中:A和B中的一个表示氢,另一个表示可选取代的融合
三环杂环基;X为S或O。