| abstract |
Abstract The present invention relates to an antibiotic A-7413 mixture comprising factors A, B, C and D, and A-7413 factor A, A-7413 factor B, A-7413 factor C and A-7413 factor D, its production by cultivation of Antinoplanes sp. NRRL 8122 or a A-7413 producing mutant thereof, its separation from the culture media; and optionally the isolation of factors A, B, C and D. It also relates to the C1-C4-alkyl esters, C1-C5-acyl esters and thiol-C-2-C4-carboxylic acid derivatives of A-7413 factors A, B and C; and the physiologically acceptable salts of factors A, B and C and their C1-C5-acyl esters and thiol-C2-C4-carboxylic acid derivatives. |