Natural Product Research 2008-May
Laurane-derived sesquiterpenes from the marine red alga Laurencia tristicha (Rhodomelaceae).
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Two new stereoisomers of laurane-derived brominated sesquiterpenes, 4-bromolaur-11-en-1,10alpha-diol (1) and 4-bromolaur-11-en-1,10beta-diol (2), one new natural product, laur-11-en-1,10alpha-diol (3), together with 11 known compounds (4-14) were isolated and identified from the organic extract of the marine red alga Laurencia tristicha. Their structures and relative stereochemistry were established by analysis of mass and NMR spectroscopic techniques.