Beta-lactamase inhibitors

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 471/08 (2006.01) A61K 31/529 (2006.01) A61K 31/535 (2006.01) A61P 31/04 (2006.01) C07D 487/08 (2006.01) C07D 519/00 (2006.01)

Patent

CA 2712783

Substituted bicyclic beta-lactams of Formula I: (see formula I), are .beta.-lactamase inhibitors, wherein a, X, R1 and R2 are defined herein. The compounds and pharmaceutically acceptable salts thereof are useful in the treatment of bacterial infections in combination with .beta.-lactam antibiotics. In particular, the compounds can be employed with a .beta.-lactam antibiotics (e.g., imipenem, piperacillin, or ceftazidime) against microorganisms resistant to .beta.-lactam antibiotics due to the presence of the .beta.- lactamases.

L'invention concerne des bêta-lactames bicycliques substitués de la formule I : (I), sont des inhibiteurs de b-lactamase, a, X, R1 et R2 étant décrits par les présentes. Les composés et les sels de qualité pharmaceutique de ceux-ci s'utilisent dans le traitement d'infections bactériennes en combinaison avec des antibiotiques de b-lactame. En particulier, les composés peuvent être utilisés avec des antibiotiques de b-lactame (par exemple l'imipenème, la pipéracilline ou la ceftazidime) contre des micro-organismes résistants aux antibiotiques de b-lactame dus à la présence des b-lactamases.

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