Studies on the Constituents of the Aerial Parts of Reineckia carnea KUNTH

Two steroidal sulfates, tentatively named Rs-1 and 2 which were detected with pinacryptol yellow reagent, were isolated from a methanol extract of the aerial parts of Reineckia carnea KUNTH (Liliaceae). Rs-1 and 2 were characterized as kitigenin 4-O-sulfate and its proto-type, 26-O-β-D-glucopyranosyl 22-methoxy-5β-furostane-1β, 3β, 4β, 5β, 26-pentaol 4-O-sulfate, respectively. Further, three kinds of steroidal glycosides, named Rg-1, and compound I and II were separated from the MeOH extract. Rg-1 was established as pentologenin 5-O-β-D-glucopyranoside, and the others were elucidated as a mixture of convallamarogenin and isorhodeasapogenin carrying the sugar moieties of 1-O-α-L-rhamnopyranosyl-(1→2)-β-D-fucopyranosido-3-O-α-L-rhamnopyranoside and 1-O-α-L-rhamnopyranosyl-(1→2)-β-D-xylopyranosido-3-O-α-L-rhamnopyranoside, respectively.