Teicoplanin derivatives.

摘要

The present invention is directed to new antibiotic substances which are 34-de-(acetylaminoglucopyranosyl)-34-deoxy teicoplanin derivatives (I) possessing antimicrobial activity in particular against gram positive bacteria. <CHEM> wherein A represents hydrogen or OA represents N[(C10-C11) aliphatic acyl]-beta-D-2-deoxy-2-amino-glucopyranosyl, M represents hydrogen or OM represents alpha-D-manno-pyranosyl, with the proviso that when M represents hydrogen also A must represent hydrogen, and the addition salts thereof. w