COSTUSOSIDE-I AND COSTUSOSIDE-J, TWO NEW FUROSTANOL SAPONINS FROM THE SEEDS OF COSTUS SPECIOSUS

Article abstract of DOI:10.1016/0031-9422(82)80092-7

The structure of costusoside I and costusoside J have been established as 3-O-<β-D-glucopyranosyl (1-->2)-α-L-rhamnopyranosyl (1-->2) <α-L-rhamnopyranosyl (1-->4)>-β-D-glucopyranosyl>-26-O-(β-D-glucopyranosyl-22α-methoxy-25R)-furost-5-en-3β,26-diol and its 22-hydroxy compound respectively, isolated from the seeds of Costus speciosus.Key Word Index - Costus speciosus; Costaceae; furostanol saponin; 3-O-<β-D-glucopyranosyl (1-->2)-α-L-rhamnopyranosyl (1-->2) <α-L-rhamnopyranosyl (1-->4)>-β-D-glucopyranosyl>-26-O-(β-D-glucopyranosyl)-(25R)-furost-5-en-3β,22α,26- triol and its 22α-methoxy derivative.