Triterpenoid saponins from Acorus calamus

摘要

Two new triterpenoid saponins have been isolated from the rhizome of plant Acorus calamus. They are characterized as 1#beta#, 2#alpha#, 3#beta#, 19#alpha#-tetrahydroxyurs-12-en-28-oic acid-28-O-{-#beta#-D-glucopyranosyl (1->2)}-#beta#-D-galactopyranoside 1 and 3#beta#, 22;;lpha#, 24, 29-tetrahydroxyolean-12-en-3-O-{-#beta#-D-arabinosyl (1->3)}-#beta#-D-arabinopyranoside 2 and their structures elucidated by spectral and chemical studies.