论文信息 - A New Bromotyrosine Alkaloid from the Caribbean Sponge Aiolochroia crassa

A New Bromotyrosine Alkaloid from the Caribbean Sponge Aiolochroia crassa

Abstract A detailed analysis of the chemical constituents of a Caribbean specimen of Aiolochroia 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.

P. Proksch | V. Wray | M. Assmann | R. V. VAN SOEST

[1] P. Ciminiello,et al. Chemistry of Verongida Sponges, IV. Comparison of the Secondary Metabolite Composition of Several Specimens of Pseudoceratina crassa , 1995 .

[2] P. Ciminiello,et al. Chemistry of Verongida Sponges, III. Constituents of a Caribbean Verongula sp. , 1994 .

[3] P. Ciminiello,et al. Chemistry of Verongida Sponges, II. Constituents of the Caribbean Sponge Aplysina fistularis forma fulva , 1994 .

[4] M. Tsuda,et al. Purealidins E-G, New Bromotyrosine Alkaloids from the Okinawan Marine Sponge Psammaplysilla purea , 1992 .

[5] L. Minale. Natural Product Chemistry of the Marine Sponges , 1977 .

[6] S. D. Rosa,et al. The bromo-compounds of the true spongeVerongia aerophoba , 1983 .

[7] F. Schmitz,et al. Marine natural products: fistularin-1, -2 and -3 from the sponge Aplysina fistularis forma fulva , 1979 .

[8] G. Cimino,et al. Natural products from porifera. , 1976, Fortschritte der Chemie organischer Naturstoffe = Progress in the chemistry of organic natural products. Progres dans la chimie des substances organiques naturelles.