
Chemical and Pharmaceutical Bulletin p. 378 - 391 (1995)
Update date:2022-08-02
Topics:
Yasuzawa
Murol
Ichimura
Takahashi
Ogawa
Takahashi
Sano
Saitoh
Seven novel potent antitumor antibiotics, duocarmycins A (1), C1 (2), C2 (3), D (4), B1 (5), B2 (6) and SA (7), were isolated from three independently collected Streptomyces sp. The complete structures, including absolute stereochemistry, were determined by spectral and chemical studies of those duocarmycins and several derivatives. Duocarmycins A (1) and SA (7) possess a 1,2,7,7a-tetrahydrocycloprop[1,2-c]indol-4-one subunit, a common pharmacophore with that of CC-1065 (10) found from Streptomyces zelensis.
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