2,3,4-tri-O-acetyl-6-O-<2,3,4-tri-O-acetyl-6-O-<2,3,4-tri-O-acetyl-6-O-(2,3,4-tri-O-acetyl-β-D-glucopyranosyl)-β-D-glucopyranosyl>-β-D-glucopyranosyl>-β-D-glucopyranosyl chloride 在
4 A molecular sieve 、 mercury dibromide 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 120.0h,
生成 2,3,4,2',3',4',2'',3'',4'',2''',3''',4'''-dodeca-O-acetyl-tetra-β-D-glucopyranosyl 1,6''':6,1':6',1'':6'',1'''-tetraanhydride