Structures of duocarmycins, novel antitumor antibiotics produced by streptomyces sp.

Abstract

The structures of new antitumor antibiotics, Duocarmycin A, C1 and C2, isolated from the culture broth of Streptomyces sp., have been determined on the basis of chemical and physicochemical evidence. © 1988, The Pharmaceutical Society of Japan. All rights reserved.