[Chemical constituents from herb of Alternanthera philoxeroides].
OBJECTIVE
To study the active constituents from Alternanthera philoxeroides.


METHODS
The constituents were isolated with silica gel and Toyopearl HW-40C gel column chromatography and purified by HPLC. Their structures were elucidated by spectroscopy.


RESULTS
Nine compounds were isolated and identified as phaeophytin a (1), pheophytin a' (2), oleanoic acid (3), beta-sitosterol (4), 3beta-hydroxystigmast-5-en-7-one (5), alpha-spinasterol (6), 24-methylenecycloartanol (7), cycloeucalenol (8), phytol (9).


CONCLUSIONS
Compounds 1,2,5,7-9 were isolated from this plant for the first time.
Fang
Jin-bo
JB
College of Pharmaceuticals, Tianjin University, China.
Duan
Hong-quan
HQ
Zhang
Yan-wen
YW
Yoshihisa
Takaishi
T
D027703:Amaranthaceae / Q000737:chemistry*; D002734:Chlorophyll / Q000737:chemistry / Q000302:isolation & purification*; D010836:Phytol / Q000737:chemistry / Q000302:isolation & purification*; D010840:Phytosterols / Q000737:chemistry / Q000302:isolation & purification*; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
D010840:Phytosterols; C406457:phaeophytin a; D002734:Chlorophyll; D010836:Phytol; C007198:cycloleucalenol