Abstract

Three new angucyclinones, saccharothrixins A (6), B (7) and C (8), together with five known analogues, X-14881 A (1), X-14881 E (2), ochromycinone (3), X-14881 C (4) and X-14881 B (5), were isolated from the actinomycete Saccharothrix espanaensis An 113 associated with the marine mollusk Anadara broughtoni. The structures of the new compounds were elucidated by spectroscopic methods including one- and two-dimensional NMR and by comparison of the NMR data with those of the structurally related known angucyclinone X-14881 A (1).

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