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Sesquiterpenes from the Marine Red Alga Laurencia saitoi
Author(s) -
Su Hua,
Yuan ZhaoHui,
Li Jing,
Guo ShuJu,
Deng LiPing,
Han LiJun,
Zhu XiaoBin,
Shi DaYong
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.200800437
Subject(s) - chemistry , laurencia , two dimensional nuclear magnetic resonance spectroscopy , stereochemistry , derivative (finance) , algae , botany , economics , financial economics , biology
Together with five known sesquiterpenes, EtOH extraction of Laurencia saitoi yielded four new compounds, including three sesquiterpenes and one norsesquiterpene derivative. Their structures and relative configurations were elucidated by spectroscopic methods, including 1D‐ and 2D‐NMR ( 1 H, 1 H‐COSY, HMQC, HMBC, and NOESY), as well as low‐ and high‐resolution mass‐spectrometric analyses.