C
139H
146O
28 在
甲醇 、
sodium methylate 作用下,
以
四氢呋喃 为溶剂,
以72%的产率得到benzyl O-(3,4,6-tri-O-benzyl-α-D-mannopyranosyl)-(1->2)-O-(3,4,6-tri-O-benzyl-α-D-mannopyranosyl)-(1->3)-O-<(3,4,6-tri-O-benzyl-α-D-mannopyranosyl)-(1->2)-O-(3,4,6-tri-O-benzyl-α-D-mannopyranosyl-(1->6)>-2,4-di-O-benzyl-α-D-mannopyranoside