[Studies on lignan constituents of Clematis parviloba].
Ključne besede
Povzetek
OBJECTIVE
To study the chemical constituents of the stems of Clematis parviloba.
METHODS
The compounds were isolated and purified by repeated column chromatography with silica gel, Sephadex LH-20 and HPLC. Their structures were identified by spectroscopic data together with physical and chemical property.
RESULTS
Ten compounds have been isolated from the stems of C. parviloba, and identified as: (+) pinoresionol (1), (+) pinoresionol-4'-O-p-D-glucopyranoside (2), ( +) pinoresionol4, 4'-O-bis-beta-D-glucopyranoside (3), (-) syringaresinol (4), (+) syringaresinol-4'-O-beta-D-glucopyranoside (5), (-)episyringaresinol (6), (+) medioresinol-4'-O-beta-D-glucopyranoside (7), (+) lariciresinol-4-O-beta-D-glucopyranoside (8), (+) lariciresinol-4'-O-beta-D-glucopyranoside (9), (+) lariciresinol-4, 4'-O-bis-beta-D-glucopyranoside (10), respectively.
CONCLUSIONS
Compounds 6, 7 were isolated from this genus for the first time, and the other ones were isolated from this plant for the first time.
