[Studies on chemical constituents of leaves of Cassia angustifolia].
OBJECTIVE
To study the chemical constituents of the leaves of Cassia angustifolia Vahl.


METHODS
Solvents extraction and various chromatographic methods were applied to separate and purify its constituents. The structures were elucidated on the basis of chemical evidence and spectral analysis.


RESULTS
Six compounds were obtained and identified as cholesterol (I), kampferol-3-rutinoside (II), calyxanthone (III), 3-methoxy-4-hydroxy-benzoic acid (IV), p-dimethylaminobenzaldehyde (V), 3,4-dihydroxybenzoic acid (VI).


CONCLUSIONS
Six compounds ( I -VI) are obtained from this plant for the first time.
He
Wen-fei
WF
Wenzhou Medical College, Wenzhou 325035, China. wenfeihe@yahoo.com.cn
Lu
Jin-cai
JC
Yu
Xiao-min
XM
Ding
You-mei
YM
D001547:Benzaldehydes / Q000737:chemistry / Q000302:isolation & purification*; D002681:China; D002784:Cholesterol / Q000737:chemistry / Q000302:isolation & purification*; D002855:Chromatography, Thin Layer / Q000379:methods; D062385:Hydroxybenzoates / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D029846:Senna Plant / Q000737:chemistry*
D001547:Benzaldehydes; D062385:Hydroxybenzoates; C009091:protocatechuic acid; D002784:Cholesterol; C510241:p-dimethylaminobenzaldehyde