FOERFARANDE FOER FRAMSTAELLNING AV ANTIBIOTIKA BBM-1675 A1, A2, A3, A4 OCH B1 OCH B2 MED ANTITUMOERVERKAN.

摘要

An antibiotic complex designated herein as BBM-1675 complex is produced by fermentation of certain novel strains of Actinomadura verrucosospora. The complex may be separated into two major components, BBM-1675A1 and A2, and four minor components, BBM-1675 A3, A4, B1 and B2, and such components exhibit both antimicrobial activity and antitumor activity.