[Studies on chemical constituents of seeds of Desmos chinensis Lour].
OBJECTIVE
To investigate the chemical constituents of Desmos chinensis.


METHODS
Various column chromatographic techniques were employed for the isolation and purification of constituents from the ethanol extract. The structures were elucidated by spectral analysis.


RESULTS
Eleven compounds were isolated and identified as lawinal(1), desmosal(2), desmethoxymatteucinol(3), unonal(4), isounonal(5), desmosflavone(6), allantoic acid(7), succinic acid(8), daucosterol(9), beta-sitosterol(10) and stearic acid(11). The structures of compounds 1 and 2 were reconfirmed by NOEDS technique.


CONCLUSIONS
Compound 2 is a new natural product and 7, 8 and 9 were found from this plant for the first time.
Ju
J
J
Institute of Medicinal Plant, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100094.
Yu
J
J
D029061:Annonaceae / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry
D005419:Flavonoids; C469242:desmosal; C061398:lawinal