Chemistry of Verongida Sponges, VII. Bromocompounds from the Caribbean Sponge Aplysina archeri

A detailed analysis of the secondary liposoluble metabolites of the Verongida sponge Aplysina archery has been performed. Ten bromotyrosine derivatives have been identified of which one, 1, is a novel compound. Structure of 1 has been assigned on the basis of spectroscopic evidence including 2D-NMR experiments. Absolute configuration has been suggested by helicity rule