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Halogenated Sesquiterpenes from the Marine Red Alga Laurencia saitoi (Rhodomelaceae)

✍ Scribed by Nai-Yun Ji; Xiao-Ming Li; Ke Li; Bin-Gui Wang

Publisher
John Wiley and Sons
Year
2009
Tongue
German
Weight
158 KB
Volume
92
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Four new halogenated sesquiterpenes, 10‐bromo‐3‐chloro‐2,7‐epoxychamigr‐9‐en‐8__α__‐ol (1), 2,10__β__‐dibromochamigra‐2,7‐dien‐9__α__‐ol (2), (9__S__)‐2‐bromo‐3‐chloro‐6,9‐epoxybisabola‐7(14),10‐diene (3), and (9__R__)‐2‐bromo‐3‐chloro‐6,9‐epoxybisabola‐7(14),10‐diene (4), were characterized from the marine red alga Laurencia saitoi. In addition, two known halosesquiterpenes, 2,10‐dibromo‐3‐chlorochamigr‐7‐en‐9__α__‐ol (5) and isolaurenisol (6), were also isolated and identified. Their structures were established on the basis of extensive analysis of spectroscopic data.

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