RESUMO
OBJECTIVE: To study the chemical constituents from the aerial parts of Paris polyphylla var. chinensis. METHODS: The compounds were isolated and purified from the 75% ethanol extract by chromatography on HPD100 macroporous resin, silica gel, and Sephadex LH-20 as well as semi-preparative HPLC. Their structures were elucidated on the basis of spectral data. RESULTS: Eleven compounds were isolated and identified as corchionoside C (1), β-ecdysterone (2), coronatasterone (3), kaempferol-3-O-β-D-galactopyranoside (4), astragalin (5), isorhamnetin-3-O-β-D-glucopyranoside (6), kaempferol-3-O-β-D-glucopyranosyl-(l→2)-β-D-galactopyranoside(7), isorhamnetin-3-O-β-D-glucopyranosyl-(l→2)-β-D-galactopyranoside (8), kaempferol-3-O-β-D-glucopyranosyl-(l→2)-β-D-glucopyranoside (9), isorhamnetin-3-O-β-D-galactopyranosyl-(l→6)-β-D-glucopyranoside (10), and isorhamnetin-3-O-β-D-gentiobioside (11). CONCLUSION: Compounds 1 and 3-11 are isolated from this plant for the first time and compounds 1, 3-5 and 8-10 are isolated from Paris plants for the first time.