RESUMEN
Objective: To study the chemical constituents in the aerial parts of Aconitum carmichaelii. Methods: The air-dried arial parts of A. carmichaelii were powdered and extracted with methanol by percolation extraction. After the removal of solvent under reduced pressure, the crude extract was dissolved in 1.5% HCl solution, and then extracted by ethyl acetate to obtain the total crude extract. The compounds were isolated and purified by column chromatography and identified by spectral analyses (MS, 13C-NMR, and 1H-NMR). Results: Fifteen compounds were isolated from A. carmichaelii and characterized as indol-3-carboxylic acid (1), corchoionol C (2), β-sitosterol-3-O-β-D-glucoside-6’-palmitate (3), (+)-pinoresinol (4), (+)-N-formylnorglaucine (5), oxoglaucidaline (6), glaucine (7), (+)-cataline (8), kaempferol-7-O-α-L-rhamnofuranoside (9), kaempferol-3-O-β-(2″-acetyl)-galactopyranoside (10), megastigmane (11), kaempferol-7-O-α-L-arabinoside (12), kaempferol-3-O-β-D-xylopyranoside (13), kaempferol-3-O-β-D- glucopyranoside (14), and quercetin-3-O-β-D-galactopyranoside (15). Conclusion: All compounds are isolated from aerial parts of A. carmichaelii for the first time, and compounds 1-3,5-6,8-15 are isolated from this plant for the first time.
RESUMEN
Objective To research the chemical constituents from Parathelypteris glanduligera. Methods The compounds were isolated by column chromotography with silica gel, C18 reverse-phase silica gel, and Sephadex LH-20. Their structures were elucidated on the basis of physiochemical prosperities and spectral analysis. Results Eleven compounds were isolated and identified as kaempferol (1), astragaloside (2), trifolioside (3), kaempferol-3-O-α-L-rhamnopyranoside (4), kaempferol-3-O-rutinoside (5), quercetin (6), quercetin-3-O-β-D-galactopyranoside (7), rutin (8), myriciatrin I (9), 3’-methyl-4’,6’-dihydroxy-2’-methoxy-chalcone (10), and 3’,5’-dimethyl-4’,6’-dihydroxy-2’-methoxy-chalcone (11), respectively. Conclusion All compounds are obtained from this plant for the first time.