A new pregnane glycoside and oligosaccharide from Parabarium huaitingii

摘要

Two new compounds, along with two known compounds, were isolated from the barks of Parabarium huaitingii, and their structures were determined as 5a-pregn-6-ene-3beta 17a,20(S)-triol-20-O-beta-D-digitoxopyranoside (1), cymaropyranurolactone 4-0-beta-D-digitalopyranosyl-(l -> 4)-O-beta-D-cymaropyranosyl-(l -> 4)-O-beta-D-oleandropyra-nosyl-(l ? 4)-O-beta-D-cymaropyranoside (2), 3beta,17alpha,20(S)-trihydroxy-5alpha-pregn-6-ene (3), and 5alpha-pregn-6-ene-3beta,17alpha,20(S)-triol-3-O-beta-D-digitalopyranoside (4) by spectroscopic methods.