Base-mediated transformations of 3,5-dibromoverongiaquinol from the sponge Aplysina sp. to cavernicolins-1, -2 and a subereatensin analogue |
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| Authors: | Santalova Elena A |
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| Affiliation: | Laboratory of Marine Natural Products Chemistry, Pacific Institute of Bioorganic Chemistry of the Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok 690022, Prospect 100-let Vladivostoku, 159, Russia. santalova@piboc.dvo.ru |
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| Abstract: | Treatment of 3,5-dibromoverongiaquinol (1) with NaHCO3-MeOH at room temperature gave cavernicolin-1 (2), cavernicolin-2 (3), the 4,7-dimethoxy analogue of subereatensin (4) and dimethyl ketal (5). These transformations may clarify the origin of the cavernicolins and subereatensin isolated from the extracts of some verongid sponges. |
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