Montiporic acids A and B, cytotoxic and antimicrobial polyacetylene carboxylic acids from eggs of the scleractinian coral Montipora digitata.

Two new polyacetylene carboxylic acids, montiporic acids A (1) and B (2), have been isolated from the eggs of the scleractinian coral Montipora digitata and their structures elucidated on the basis of spectroscopic data. They exhibited antimicrobial activity against Escherichia coli and cytotoxicity against P-388 murine leukemia cells.