title: A New Biphenyl Neolignan from Leaves of Patrinia villosa (Thunb.) Juss.
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.
  
  
  CONCLUSIONS
  One new stereoisomer of biphenylneolignan named 2,6,2',6'-tetramethoxy-4,4'-bis (1,2-trans-2,3-epoxy-1-hydroxypropyl) biphenyl with four known compounds was isolated from the leaves of Patrinia villosa Juss.
authors.affiliation: Harbin University of Commerce, Harbin 150076, PR China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Xin-Jia
authors.affiliation: Harbin University of Commerce, Harbin 150076, PR China.
authors.forename: Liu
authors.initials: L
authors.lastname: Wei
authors.affiliation: Harbin University of Commerce, Harbin 150076, PR China.
authors.forename: Zhao
authors.initials: Z
authors.lastname: Ying
authors.affiliation: Harbin University of Commerce, Harbin 150076, PR China.
authors.forename: Chen
authors.initials: C
authors.lastname: Ning
authors.affiliation: Harbin University of Commerce, Harbin 150076, PR China.
authors.forename: Xu
authors.initials: X
authors.lastname: Ying
authors.affiliation: Harbin University of Commerce, Harbin 150076, PR China.
authors.forename: Wu
authors.initials: W
authors.lastname: Jian
authors.affiliation: Beijing Center for Physical and Chemical Analysis, Beijing 100094, PR China.
authors.forename: Wang
authors.initials: W
authors.lastname: Tan
authors.affiliation: Beijing Center for Physical and Chemical Analysis, Beijing 100094, PR China.
authors.forename: Li
authors.initials: L
authors.lastname: Yue
authors.affiliation: Harbin University of Commerce, Harbin 150076, PR China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Zheng
keywords: Biphenyl neolignan; Patrinia villosa (Thunb.) Juss.; coupling constant; nuclear magnetic resonance; structure