[Studies on chemical constituents in roots of Euphorbia soongarica].
OBJECTIVE
To study the chemical constituents of the roots of Euphorbia soongarica (Xinjiang origin).


METHODS
Compounds were isolated and purified by repeated normal column chromatography, preparative thin layer chromatography and Sephadex LH - 20 chromatography. The chemical structures were elucidated by NMR and MS spectra.


RESULTS
Ten chemical constituents were isolated from the n-BuOH fraction and identified as ellagic acid (1) , 3, 3'-di-O-methylellagic acid (2) , 3, 3'-di-O-methylellagic acid-4'-O-alpha-D-arabinfuranoside (3), 3, 3'-di-O-methylellagic acid-4'-O-beta-D-xylopyranoside (4), 3, 3'-di-O-methylellagic acid-4-O-beta-D-glucopyranoside (5), 3, 3', 4'-tri-O-methylellagic acid (6), 3-O-methylellagic acid-4'-O-beta-D-xylopyranoside (7), 3, 3', 4-tri-O-methylellagic acid-4'-O-beta-D-glucopyranoside (8), brevifolin (9) and ethyl brevifolin carboxylate (10).


CONCLUSIONS
All of above compounds were obtained from this plant for the first time.
Shi
Xin-Hong
XH
Department of Traditional Chinese Medicine Pharmaceutics, China Pharmaceutical University, Nanjing 210038, China.
Du
Xiao-Li
XL
Kong
Ling-Yi
LY
D001578:Benzopyrans / Q000737:chemistry / Q000302:isolation & purification*; D004610:Ellagic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification*; D028481:Euphorbia / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
D001578:Benzopyrans; C053047:ethyl brevifolincarboxylate; D004610:Ellagic Acid; C050401:3,3'-di-O-methylellagic acid