methyl 5-acetamido-4,7,8,9-tetra-O-acetyl-2-S-<6-(5-cholesten-3β-yloxy)hexyl>-3,5-dideoxy-2-thio-β-D-glycero-D-galacto-2-nonulopyranosonate 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 3.0h,
以80%的产率得到5-acetamido-2-S-<6-(5-cholesten-3β-yloxy)hexyl>-3,5-dideoxy-2-thio-β-D-glycero-D-galacto-2-nonulopyranosonic acid