N-(2,3,4,6-tetra-O-benzoyl-α-D-glucopyranosyl-(1-4)-2,3,6-tri-O-benzoyl-α-D-glucopyranosyl-(1-4)-2,3,6-tri-O-benzoyl-α-D-glucopyranosyl-(1-4)-2,3,6-tri-O-benzoyl-β-D-glucopyranosyl)-4-((3R,10S,12S,13R)-3,12-di-O-acetyl-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanamide 在
sodium methylate 作用下,
以
四氢呋喃 、
甲醇 为溶剂,
反应 17.0h,
以100%的产率得到N-(α-D-glucopyranosyl-(1-4)-α-D-glucopyranosyl-(1-4)-α-D-glucopyranosyl-(1-4)-β-D-glucopyranosyl)-4-((3R,10S,12S,13R)-12-O-acetyl-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanamide