Tozuka Z, Yazawa H, Murata M, Takaya T
J Antibiot (Tokyo). 1983 Dec;36(12):1699-708. doi: 10.7164/antibiotics.36.1699.
The syntheses and antitumor activity of tomaymycin analogs are described. Structural modification of such parts of tomaymycin as the ethylidenepyrrole ring, animal bond, and substituents of the benzene ring are discussed.