Abstract: The complete assignments of ¹H and ¹³C NMR spectral lines for synthesized diosgenylsopinin analogs have been achieved by homo-and hetero-nuclear two dimensional NMR spectroscopy. These soponins are diosgenyl β-D-glucopyranoside (1), diosgenyl α-L-rhamnopyranosyl-(1→2) -β-D-glucopyranOSide (2), diosgenyl α-L-rhamnopyranosyl-(1→4) -β-D-glucopyranoside (3),diosgenyl, α-L-rhamnop yranosyl-(1→ 2)-α-L-rhamnopyranosyl-(1→4) -β-D-Gly-copyranosilde (4)and diosgenyl α-L-rhamnopyranosyl-(1 → 2)-β-L-arabinofuranosyl-(1→4) -β-D-glucopyranoside (5).

Key words: Diosgenin, Saponin, Rhamnopyranosyl, 2D NMR