Abstract
The structures of the steroidal saponins, convallasaponin-A (II), -B (IX), glucoconval-lasaponin-A (I) and-B (VIII), which were isolated from the flowers of Convallaria keisukei MIQ., Japanese lily of the valley, were studied and they were elucidated as convallagenin-A-(3)-α-L-arabopyranoside, convallagenin-B-(5)-α-L-arabopyranoside, convallagenin-A-(3)-β-D-glucopyranosyl (1→2arab)-α-L-arabopyranoside, convallagenin-B-(3)-β-D-glucoypranoside, (5)-α-L-arabopyranoside, respectively.
