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Two New Diterpenoids from Callicarpa pedunculata

✍ Scribed by Hai-Yang Liu; Hong-Ping He; Suo Gao; Chang-Xiang Chen; Yue-Mao Shen; Xiao-Jiang Hao

Publisher
John Wiley and Sons
Year
2006
Tongue
German
Weight
80 KB
Volume
89
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

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.

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