8-Methoxycarbonyloctyl 3-O-benzyl4O-methyl-2-O-(2,3,4,6-tetra-O-benzyl-alpha-D-glucopyranosyl)-alpha-D-glucopyranoside 、 8-Methoxycarbonyloctyl 2-O-(alpha-D-glucopyranosyl)-alpha-D-glucopyranoside 以to provide 61 (25 mg, 89.2%) as a white powder after lyophilization的产率得到8-Methoxycarbonyloctyl 4-O-methyl-2-O-(α-D-glucopyranosyl)-α-D-glucopyranoside