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Two New Isoprenylated Stilbenes from Artocarpus chama
Author(s) -
Wang YongHong,
Hou AiJun,
Chen DaoFeng
Publication year - 2007
Publication title -
journal of integrative plant biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.734
H-Index - 83
eISSN - 1744-7909
pISSN - 1672-9072
DOI - 10.1111/j.1744-7909.2007.00377.x
Subject(s) - diol , chemistry , benzene , stereochemistry , organic chemistry
Two new stilbenes with two isoprenoid groups, namely artostilbenes A (compound 1) and B (compound 2), were isolated from the stems of Artocarpus chama Buch.‐Ham. by repeated column chromatography. Their structures were elucidated as ( E )‐4‐[2‐(7‐methoxy‐2,2‐dimethyl‐6‐(3‐methylbut‐2‐enyl)‐2 H ‐1‐benzopyran‐5‐yl)vinyl]benzene‐1, 2‐diol (compound 1) and ( Z )‐4‐[2‐(7‐methoxy‐2,2‐dimethyl‐6‐(3‐methylbut‐2‐enyl)‐2 H ‐1‐benzopyran‐5‐yl)vinyl]benzene‐1,2‐diol (compound 2) by spectroscopic methods, mainly by 1D‐, 2D‐NMR and MS spectra. Compounds 1 and 2 are two cis ‐ and trans ‐isomers and compound 2 is the first cis ‐stilbene isolated from Moraceous plants. (Handling editor: Jian‐Min Yue)