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A new pentacyclic sulfated hydroquinone from the marine sponge Haliclona sp.

โœ Scribed by Heidi R. Bokesch; Amy C. Stull; Lewis K. Pannell; Tawnya C. McKee; Michael R. Boyd

Publisher
Elsevier Science
Year
2002
Tongue
French
Weight
59 KB
Volume
43
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

A new pentacyclic sulfated hydroquinone, phuklona sulfate, has been isolated from the marine sponge Haliclona sp. collected near Phuket Island, Thailand. The structure was elucidated by a variety of spectroscopic methods including 1D and 2D NMR experiments. Phuklona sulfate contains a novel triterpenoid carbon skeleton linked to a sulfated hydroquinone moeity. Published by Elsevier Science Ltd.

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2D-NMR spectroscopic data is reported for the haliclonacyclamines A -D (1)-( ) and for two bismethiodide adducts ($) and ( ). The structures of two new alkaloids, halicionacyclamines C (3) and D (4), which are the 15,16-dihydro analogues of the haliclonacyclamines A (1) and B (2) are described. Revi