| Popis: |
Three new furostanol glycosides, named ciliatasides A, B, and C (1–3, resp.), have been isolated from the roots of Digitalis ciliata, along with two known furostanol glycosides. The structures of the new compounds were identified as (2α,3β,5α,14β,25R)-26-(β-D-glucopyranosyloxy)-2-hydroxyfurost-20(22)-en-3-yl β-D-glucopyranosyl-(12)-[β-D-glucopyranosyl-(13)]-β-D-galactopyranoside (1), (2α,3β,5α,14β,22R)-26-(β-D-glucopyranosyloxy)-2-hydroxy-22-methoxyfurost-25(27)-en-3-yl β-D-galactopyranosyl-(12)-[β-D-xylopyranosyl-(13)]-β-D-glucopyranosyl-(14)-β-D-galactopyranoside (2), and (2α,3β,5α,14β,22R,25R)-26-(β-D-glucopyranosyloxy)-2,22-dihydroxyfurostan-3-yl β-D-glucopyranosyl-(12)-[β-D-glucopyranosyl-(13)]-β-D-galactopyranoside (3). |
