ethyl O-(2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl)-(1<*>3)-O-(2-O-benzoyl-4,6-O-benzylidene-β-D-glucopyranosyl)-(1<*>3)-4,6-di-O-acetyl-2-O-benzoyl-1-thio-α-D-glucopyranoside 在
对甲苯磺酸 作用下,
以
乙二醇 、
乙腈 为溶剂,
以89%的产率得到ethyl O-(2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl)-(1<*>3)-O-(2-O-benzoyl-β-D-glucopyranosyl)-(1<*>3)-4,6-di-O-acetyl-2-O-benzoyl-1-thio-α-D-glucopyranoside