8-Methoxycarbonyloctyl 3-O-benzyl-2-O-(2,3,4, 6-tetra-O-benzyl-α-D-glucopyranosyl)-α-D-glucopyranoside 、 、
methanesulfonate 在
silica gel 作用下,
以to provide 39 (385 mg, 79.1%) as a syrup after chromatography on silica gel using (hexane:ethyl acetate; 2:1) as eluant的产率得到8-Methoxycarbonyloctyl 3-O-benzyl-6-O-methanesulfonyl-2-O-(2,3,4,6-tetra-O-benzyl-alpha-D-glucopyranosyl)-alpha-D-glucopyranoside