摘要:
Two new and six known steroidal glucosides were isolated from the tuber of Ophiopogon japonicus. The new steroidal glucosides were established as (20R, 25R)-26-O-beta-D-glucopyranosyl-3 beta,26-dihydroxycholest-5-en-16,22-dioxo-3-O-alpha-L-rhamnopyranosyl-(1 -> 2)-beta-D-glucopyranoside (1) and 26-O-beta-D-glucopyranosyl-(25R)-furost-5-en-3 beta,14 alpha,17 alpha,22 alpha,26-pentaol-3-O-alpha-L-rhamnopyranosyl-(1 -> 2)-beta-D-glucopyranoside (3) on the basis of spectroscopic data as well as chemical evidence.