916448-28-7

Basic information

• Product Name: (5R)-6-[acetoxy-(2,3-dihydropyrazolo[5,1-b]thiazol-6-yl)methyl]-6-bromo-7-oxo-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester
• Synonyms: (5R)-6-[acetoxy-(2,3-dihydropyrazolo[5,1-b]thiazol-6-yl)methyl]-6-bromo-7-oxo-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester
• CAS NO: 916448-28-7
• Molecular Weight: 581.425
• Mol File: 916448-28-7.mol

Chemical Properties

• CAS DataBase Reference: (5R)-6-[acetoxy-(2,3-dihydropyrazolo[5,1-b]thiazol-6-yl)methyl]-6-bromo-7-oxo-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: (5R)-6-[acetoxy-(2,3-dihydropyrazolo[5,1-b]thiazol-6-yl)methyl]-6-bromo-7-oxo-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester(916448-28-7)
• EPA Substance Registry System: (5R)-6-[acetoxy-(2,3-dihydropyrazolo[5,1-b]thiazol-6-yl)methyl]-6-bromo-7-oxo-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid p-nitrobenzyl ester(916448-28-7)

Safety Data

• Hazardous Substances Data: 916448-28-7(Hazardous Substances Data)

Upstream product

• 623565-43-5 2,3-Dihydropyrazolo[5,1-b]thiazol-6-carbaldehyde 
• 108-24-7 acetic anhydride 
• 623564-16-9 (5R,6S)-6-bromo-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitrobenzyl ester 

Relevant articles and documents

Bicyclic 6-alkylidene-penems as class-D beta-lactamases inhibitors

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 R5 thereof: wherein: One of A and B denotes hydrogen and the other an optionally substituted fused bicyclic heteroaryl group; and X═O or S.

BICYCLIC 6-ALKYLIDENE-PENEMS AS ?-LACTAMASES INHIBITORS

The present invention provides a compound of Formula (I), pharmaceutical compositions and the use thereof for the treatment of bacterial infection or disease in a patient in need thereof.