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Cytotoxic C47-polyacetylene carboxylic acids from a marine sponge Pertrosia sp
Chikane Okamoto1, Yoichi Nakao, Tsuyoshi Fujita
1Laboratory of Aquatic Natural Products Chemistry, Garaduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan.
Abstract:
Two new polyacetylene carboxylic acids, petroformynic acids B (3) and C (4), were isolated from a marine sponge Pertrosia sp. as cytotoxic constituents. Their structures were determined by interpretation of 2D NMR data and tandem FABMS data. Absolute stereochemistry of 3 was assigned by application of the modified Mosher analysis. Petroformynic acids exhibit moderate cytotoxic activity against P388 cells.
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