Steroidal Glycoside from Allium porrum

摘要

New steroidal glycoside 1 was isolated by fractionating total extracted substances from Allium porrum. Its structure was determined as (25R)-5_-spirostane-3 beta,6 beta-diol-2,12-dione 3-O-{beta-D-glucopyranosyl-(1 - 3)-beta-D-glucopyranosyl-(1 - 2)-[beta-D-xylopyranosyl-(1 - 3)]-beta-D-glucopyranosyl-(1 - 4)-beta-Dgalactopyranoside} using chemical transformations, physical constants, and spectral data.