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Halogenated Sesquiterpenes from the Marine Red Alga Laurencia saitoi (Rhodomelaceae)
Author(s) -
Ji NaiYun,
Li XiaoMing,
Li Ke,
Wang BinGui
Publication year - 2009
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.200900073
Subject(s) - rhodomelaceae , chemistry , laurencia , stereochemistry , algae , botany , biology
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.