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Two phthalide dimers from the radix of Angelica sinensis
Xing-Nuo Li1, Yuan-Yi Chen, Dong-Ping Cheng
1College of Pharmaceutical Science, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, P.R. China.
Natural Product Research
|September 20, 2011
Abstract:
The phytochemical investigation of extracts from the radix of Angelica sinensis yielded a new phthalide dimer, 3,3'Z-6.7',7.6'-diligustilide, along with a known dimer, levistolide A. Their structures were established on the basis of spectral data, particularly using 1D-NMR and several 2D shift-correlated NMR pulse sequences (¹H-¹H COSY, HSQC, HMBC and NOESY).