Elaiophylin (1) and two new methyl derivatives, 11-O-monomethylelaiophylin (2) and 11,11'-O-dimethylelaiophylin (3), were isolated from the mycelium cake of Streptomyces strains HKI-0113 and HKI-0114. The structures of 2 and 3 were determined by mass spectrometric and NMR investigations. Compounds 2 and 3 display antimicrobial and moderate cytotoxic activities.
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New macrodiolide antibiotics, 11-O-monomethyl- and 11, 11'-O-dimethylelaiophylins, from Streptomyces sp. HKI-0113 and HKI-0114.
J Nat Prod
November 1998
Hans-Knöll-Institute of Natural Products Research, Beutenbergstrasse 11, D-07745 Jena, Germany.
Elaiophylin (1) and two new methyl derivatives, 11-O-monomethylelaiophylin (2) and 11,11'-O-dimethylelaiophylin (3), were isolated from the mycelium cake of Streptomyces strains HKI-0113 and HKI-0114. The structures of 2 and 3 were determined by mass spectrometric and NMR investigations. Compounds 2 and 3 display antimicrobial and moderate cytotoxic activities.
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