PENEM COMPOUNDS, PRODUCTION AND USE THEREOF

摘要

: Penem compounds, production and use thereof A penem compound represented by the general formula: (wherein R denotes hydrogen or allyl group, A denotes oxygen atom or methylene group and B denotes methylene, ethylene or carbonyl group) or a pharmacologically acceptable salt is produced through several processes. The compound exhibits stronger activities against wide variety of gram-positive and gram-negative bacteria as compared with known penem compounds.