3 резултати
OBJECTIVE
To study the chemical constituents from Laggera pterodonta.
METHODS
The compounds were isolated and purified by column chromatographic methods with silica gel, Sephadex LH-20, ODS and preparation HPLC. Their structures were identified by physicochemical properties and spectral
To study the chemical constituents of aerial parts of Laggera pterodonta (DC.) Benth., the air-dried aerial parts of this plant were powered and extracted with boiling water and purified by silica gel column chromatography and recrystallized. Eleven compounds were obtained from L. pterodonta. They
OBJECTIVE
To study the chemical constituents of Laggera pterodonta.
METHODS
The ethanol extract of L. pterodonta was isolated by column chromatogramphy on silica gel, ODS, and Sephadex LH-20 to afford compounds. The structures of the obtained compounds were identified by chemical reactions and