allyl (2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-(1->3)-(4-O-benzyl-α-L-rhamnopyranosyl)-(1->2)-(3,4-di-O-benzyl-α-L-rhamnopyranosyl)-(1->3)-2-O-acetyl-4-O-benzyl-α-L-rhamnopyranoside 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 3.0h,
以95%的产率得到allyl (2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-(1→3)-(4-O-benzyl-α-L-rhamnopyranosyl)-(1→2)-(3,4-di-O-benzyl-α-L-rhamnopyranosyl)-(1→3)-4-O-benzyl-α-L-rhamnopyranoside