Antibiotic a 40926 ester derivatives process for their preparation and their use as medicaments

摘要

The present invention relates to novel ester derivatives of antibiotic A 40926 complex and its N-acylaminoglucuronyl aglycone. The compounds of the invention are prepared according to an esterification process involving reaction of an A 40926 substrate with an excess of the selected alkanol in the presence of concentrated mineral acid and are active as antibiotics.