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Two New Diterpenoids from Callicarpa pedunculata
Author(s) -
Liu HaiYang,
He HongPing,
Gao Suo,
Chen ChangXiang,
Shen YueMao,
Hao XiaoJiang
Publication year - 2006
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.200690078
Subject(s) - chemistry , stereochemistry , terpene , diterpene , herb , two dimensional nuclear magnetic resonance spectroscopy , traditional medicine , organic chemistry , medicinal herbs , medicine
Two new diterpenoids, pedunculatic acid A (= (4 R ,5 α ,7 α )‐7‐ethoxy‐9 β ,13 β ‐dioxyabiet‐8(14)‐en‐18‐oic acid; 1 ) and pedunculatic acid B (= (4 S ,5 α ,12 β )‐8 β ,14 β ‐epoxy‐12‐hydroxy‐11‐oxototaran‐19‐oic acid; 2 ), together with three known sesquiterpenoids, were isolated from the Chinese medicinal herb Callicarpa pedunculata R. Brown . Their structures were elucidated by spectroscopic analyses, including 1D‐ and 2D‐NMR, and by high‐resolution mass spectrometry.