methyl 6-O-(2-O-acetyl-3,4,6-tri-O-benzyl-α-D-mannopyranosyl)-2,4-di-O-benzyl-3-O-<3,6-di-O-(2-O-acetyl-3,4,6-tri-O-benzyl-α-D-mannopyranosyl)-2,4-di-O-benzyl-α-D-mannopyranosyl>-α-D-mannopyranoside 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 16.0h,
以84.2%的产率得到methyl 2,4-di-O-benzyl-3-O-<2,4-di-O-benzyl-3,6-di-O-(3,4,6-tri-O-benzyl-α-D-mannopyranosyl)-α-D-mannopyranosyl>-6-O-(3,4,6-tri-O-benzyl-α-D-mannopyranosyl)-α-D-mannopyranoside