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New Isoprenylated 2‐Arylbenzofurans and Pancreatic Lipase Inhibitory Constituents from Artocarpus nitidus
Author(s) -
Zhao Ting,
Yan GuiRui,
Pan ShengLi,
Wang HeYao,
Hou AiJun
Publication year - 2009
Publication title -
chemistry and biodiversity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.427
H-Index - 70
eISSN - 1612-1880
pISSN - 1612-1872
DOI - 10.1002/cbdv.200900130
Subject(s) - chemistry , pancreatic lipase , benzofuran , inhibitory postsynaptic potential , stereochemistry , lipase , biochemistry , enzyme , biology , endocrinology
Two new isoprenylated 2‐arylbenzofurans, artonitidin A (=(2′ R )‐2′,3′‐dihydro‐2′‐(1‐hydroxy‐1‐methylethyl)‐5′,7‐bis(3‐methylbut‐2‐en‐1‐yl)‐2,4′‐bi‐1‐benzofuran‐6,6′‐diol; 1 ) and artonitidin B (=5‐[6‐hydroxy‐7‐(3‐methylbut‐2‐en‐1‐yl)‐1‐benzofuran‐2‐yl]‐4‐(3‐methylbut‐2‐en‐1‐yl)benzene‐1,3‐diol; 2 ), together with 14 known compounds, 3 – 16 , were isolated from the stems of Artocarpus nitidus Trec. The structures were elucidated by spectroscopic methods. Norartocarpin ( 3 ), cudraflavone C ( 5 ), brosimone I ( 8 ), artotonkin ( 11 ), albanin A ( 13 ), and artopetelin M ( 14 ) showed inhibitory effects on pancreatic lipase with IC 50 values ranging from 1.8±0.1 to 63.8±3.6 μ M .