OBJECTIVETo study the chemical constituents of Pholidota cantonensis.

METHODThe compounds were isolated and purified on silica gel, Sephadex LH-20, Chromatorex ODS column chromatography and the structures were determined based on the spectral and chemical evidences.

RESULTFour compounds were obtained and characterized as pholidonone (1), ephemeranthoquinone (2), orchinol (3), batatasin III (4).

CONCLUSIONThey have been isolated from this plant for the first time and pholidonone (1) was a new compound.

Benzoquinones ; chemistry ; Chromatography ; Drugs, Chinese Herbal ; chemistry ; Heterocyclic Compounds, 4 or More Rings ; chemistry ; Magnetic Resonance Spectroscopy ; Molecular Structure ; Orchidaceae ; chemistry ; Resorcinols ; chemistry ; Stilbenes ; chemistry

OBJECTIVETo study the chemical constituents of Polygala telephioides.

METHODThe compounds were isolated and purified on macroporous resin, silica gel, Sephadex LH-20, Chromatorex ODS column chromatograph and the structures were determined based on the spectral and chemical evidences.

RESULTFour compounds were obtained and characterized as telephiose G, telephiose D, isomangiferin, quescetin 3-O-beta-D-glucopyranoside, respectively.

CONCLUSIONCompounds 2-4 were obtained from this plant for the first time and the compound 2 (telephiose G) was a new compound.

1-Deoxynojirimycin ; isolation & purification ; Dextrans ; Glucosides ; isolation & purification ; Molecular Structure ; Plant Extracts ; pharmacology ; Polygala ; chemistry ; Silica Gel ; Silicon Dioxide ; isolation & purification ; Spectrometry, Mass, Electrospray Ionization ; Xanthones ; isolation & purification