[Studies on the chemical constituents of Chaenomeles speciosa].
OBJECTIVE
To study the chemical constituents of Chaenomeles speciosa.


METHODS
Isolation and purification were carried out by varied chromatographies, and structure identifications of compounds were carried out by physical methods, chemical methods and spectral data.


RESULTS
Seven compounds were obtained from the ethyl acetate fraction of C. speciosa, and were identified as cinnamic acid (I), 2'-methoxyaucuparin (II), 2-hydroxyl-butanedioic acid-4-methylester (III), esculetin (IV), p-hydroxybenzoic acid (V), chlorogenic acid (VI), caffeic acid (VII).


CONCLUSIONS
Compounds I - IV are obtained from Chaenomeles genus for the first time.
Yang
Ying-bo
YB
Jilin Agricultural University, Changchun 130118, China. yyb_gy@126.com
Yang
Yang
Y
Li
Xia
X
Yang
Zhen
Z
Wu
Zhi-jun
ZJ
Zheng
You-lan
YL
Sun
Lian-na
LN
D002726:Chlorogenic Acid / Q000737:chemistry / Q000302:isolation & purification; D002855:Chromatography, Thin Layer; D002934:Cinnamates / Q000737:chemistry / Q000302:isolation & purification*; D005638:Fruit / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010226:Parabens / Q000737:chemistry / Q000302:isolation & purification; D027824:Rosaceae / Q000737:chemistry*; D014468:Umbelliferones / Q000737:chemistry / Q000302:isolation & purification*
D002934:Cinnamates; D010226:Parabens; D014468:Umbelliferones; C029010:cinnamic acid; D002726:Chlorogenic Acid; C007628:esculetin