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Wilfordonols A-D: four new norsesquiterpenes from the leaves of Tripterygium wilfordii.

Ni, Lin; Zhou, Xing; Ma, Jie; Zhang, Xiao-Mei; Li, Chuang-Jun; Li, Li; Yang, Da-Jian; Shao, Yang-Yang; Zhou, Si-Bai; Zhang, Tian-Tai; Zhang, Dong-Ming.
J Asian Nat Prod Res; 17(6): 615-24, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26096035
Four new norsesquiterpenes wilfordonols A-D (1-4), along with three known compounds, sarmentol B (5), boscialin (6), and (+)-loliolide (7), were isolated from the leaves of Tripterygium wilfordii Hook.f.. The structures of the new compounds were elucidated on the basis of their spectroscopic analysis, and the absolute configuration of the compounds was confirmed by CD and modified Mosher's method. At a concentration of 10 µM, compounds 4, 6, and 7 inhibited signal transducer and activator of transcription 1 translocation by 34.27 ± 1.02%, 48.93 ± 1.76%, and 70.31 ± 2.20%, respectively.
Selo DaSilva