Chemical constituents from Clematis apiifolia / 中草药

ABSTRACT

Objective: To investigate the chemical constituents from the stem of the Clematis apiifolia. Methods: A variety of chromatographic Methods: were applied in isolation and purification including silica gel, ODS, Sephadex LH-20 gel, and HW-40C and so on. Their structures were identified by the nuclear magnetic resonance (NMR), mass spectrometry and so on. Results: These compounds were isolated and determined as hederagenin (1), α-hederin (2), sapindoside B (3), stigmast-22-en-3β, 6β, 9β-triol (4), pleuchiol (5), stigmasterol-3-O-β-D-glucopyranoside (6), stimasterol (7), siderin (8), shikimic acid (9), ethyl-α-D-glucopyranoside (10), ethyl-β-D-glucopyranoside (11), D-gulonic acid (12), 3,5-dihydroxyl-4-valerolactone (13), 2-formyl-5-hydroxymethylfuran (14), uracil (15), uridine (16), tricosanol (17), triacontanol (18), hexacosanoic acid (19), and monostearin (20). Conclusion: All compounds are obtained from C. apiifolia for the first time including firstly reported compound 3 from Clematis plants and compounds 4, 5, 9-12 from Ranunculaceae family.