Article · Volume 12, Issue 45 · pp. 1–3

A New Biphenyl Neolignan from Leaves of Patrinia villosa (Thunb.) Juss.

Yan Xin-Jia¹, Liu Wei², Zhao Ying², Chen Ning², Xu Ying², Wu Jian², Wang Tan², Li Yue², Xiang Zheng²

¹Harbin University of Commerce, Harbin 150076, PR China.
²Beijing Center for Physical and Chemical Analysis, Beijing 100094, PR China.

Abstract

Results: One new stereoisomer of biphenylneolignan with four known compounds was isolated from the leaves of Patrinia villosa Juss.Methods: The structure of the new compound was elucidated as 2,6,2’,6’-tetramethoxy-4,4’-bis (1,2-trans-2,3-epoxy-1-hydroxypropyl) biphenyl (1) on the basis of spectroscopic analysis and comparison with literature data. The four known compounds were identified as 2,6,2’,6’-tetramethoxy-4,4’-bis(1,2-cis-2,3-epoxy-1-hydroxypropyl)biphenyl (2), 1H-indole-3-carbaldehyde (3), luteolin (4) and quercetin(5) by comparison of their spectral data with the reported data, respectively.Conclusions: Compound 1 is a new biphenylneolignan, compound 2 and 3 were isolated for the first time from the plant.

Keywords: Biphenyl neolignan; coupling constant; nuclear magnetic resonance; Patrinia villosa (Thunb.) Juss; structure

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