1,2,3,6-Tetra-O-acetyl-4-desoxy-4-<1D-(1N,2,4/3,5,6)-<2,3,6,7-tetra-O-acetyl-2,3,4,6-tetrahydroxy-5-C-(hydroxymethyl)-4-O-methylcyclohexyl>amino>-α-D-glucose 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 1.0h,
以83%的产率得到(1R,2S,3R,4aS,5R,6S,7R,8S,8aS,9aR)-3-<(1S)-1,2-Dihydroxyethyl>-1,2,3,4a,5,6,7,8,8a,9a-decahydro-6-(hydroxymethyl)-7-methoxypyrrolo<2,1-b>benzoxazol-1,2,5,8-tetrol