Halogenated Sesquiterpenes from the Marine Red Alga Laurencia saitoi (Rhodomelaceae) |
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| Authors: | Nai‐Yun Ji Xiao‐Ming Li Ke Li Bin‐Gui Wang |
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| Affiliation: | 1. Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, P.?R. China, (phone: +86‐532‐82898579, fax: +86‐532‐82898568 (X.‐M.?L.);2. phone: +86‐532‐82898553, fax: +86‐532‐82880645 (B.‐G.?W.));3. Graduate School of the Chinese Academy of Sciences, Beijing 100049, P.?R. China |
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| Abstract: | Four new halogenated sesquiterpenes, 10‐bromo‐3‐chloro‐2,7‐epoxychamigr‐9‐en‐8α‐ol ( 1 ), 2,10β‐dibromochamigra‐2,7‐dien‐9α‐ol ( 2 ), (9S)‐2‐bromo‐3‐chloro‐6,9‐epoxybisabola‐7(14),10‐diene ( 3 ), and (9R)‐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‐9α‐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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| Keywords: | Laurencia saitoi Sesquiterpenes Algae Chamigrane Bisabolenes |
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