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The Constituents of Cynanchum Taiwanianum
Author(s) -
Chen ZongShiow,
Lai JengShiow,
Kao YuehHsiung
Publication year - 1991
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199100067
Subject(s) - chemistry , astragalin , quercitrin , kaempferol , quercetin , flavonoid , traditional medicine , stereochemistry , organic chemistry , medicine , antioxidant
The isolation and identification of eleven crystalline components from the aerial part of Cynanchum taiwanianum Yamazaki (Asclepiadaceae) are described. Their structures were determined on the basis of spectral evidence and chemical transformation. Besides caffeic acid, β‐amyrin, and methyl phaeophorbide a, the isolated flavonoid components are classified into two groups, i.e. kaempferol derivatives (kaempferol, astragalin, afzelin, trifolin) and quercetin derivatives (quercetin, isoquercitrin, quercitrin, hyperin).