3β-cholestanyl α-D-mannopyranosyl-(1-3)-α-D-mannopyranosyl-(1-3)-α-D-mannopyranosyl-(1-3)-α-D-mannopyranosyl-(1-2)-α-D-mannopyranoside 在
三氧化硫吡啶 、
sodium hydroxide 作用下,
以
N,N-二甲基甲酰胺 、
水 为溶剂,
反应 16.0h,
以25%的产率得到3β-cholestanyl 2,3,4,6-tetra-O-sodium sulfonato-α-D-mannopyranosyl-(1-3)-2,4,6-tri-O-sodium sulfonato-α-D-mannopyranosyl-(1-3)-2,4,6-tri-O-sodium sulfonato-α-D-mannopyranosyl-(1-3)-2,4,6-tri-O-sodium sulfonato-α-D-mannopyranosyl-(1-2)-3,4,6-tri-O-sodium sulfonato-α-D-mannopyranoside