A new bromotyrosine alkaloid from the Caribbean sponge Aiolochroia crassa

摘要

A detailed analysis of the chemical constituents of a Caribbean specimen of Aiolochroin crassa was performed. Five brominated products (1-5) were isolated and one of these was a new bromotyrosine metabolite. The structure of the new compound 1 has been established from spectral studies. Compounds 1 and 2, which are the major brominated metabolites and have not been previously identified in any Aiolochroia species, could be usefully employed as chemotaxonomic markers. [References: 9]