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Cuparene-Derived Sesquiterpenes from the Chinese Red Alga Laurencia okamurai Yamada

✍ Scribed by Shui-Chun Mao; Yue-Wei Guo

Publisher
John Wiley and Sons
Year
2005
Tongue
German
Weight
152 KB
Volume
88
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Four new cuparene‐derived sesquiterpenes, laureperoxide (1), 10‐bromoisoaplysin (2), isodebromolaurinterol (3), and 10‐hydroxyisolaurene (4), together with seven known, related sesquiterpenes, 5–11, have been isolated from the red alga Laurencia okamurai. Their structures were determined on the basis of detailed spectroscopic analyses and comparison with known compounds. Compounds 8–11 were shown for the first time to represent true natural products, and the full ^1^H‐ and ^13^C‐NMR assignments of 5 are reported for the first time.

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