CC-1065(NSC 298223), a potent new antitumor agent. Improved production and isolation, characterization and antitumor activity.

Abstract
CC-1065 (NSC 298223) is a potent new antitumor antibiotic with a unique structure produced by Streptomyces zelensis. Improved production, isolation and assay methods are described along with physico-chemical properties and antitumor activity.