2,3,4-三-O-苄基-L-吡喃岩藻糖基氟化物 、
ethyl O-(2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-α-D-galactopyranosyl)-(1<*>3)-O-(4,6-di-O-acetyl-β-D-galactopyranosyl)-(1<*>4)-3,6-di-O-benzyl-2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside 在
4 A molecular sieve 、 silver perchlorate 、 tin(ll) chloride 作用下,
以
乙醚 、
甲苯 为溶剂,
反应 8.0h,
以80.5%的产率得到ethyl O-(2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-α-D-galactopyranosyl)-(1<*>3)-O-<(2,3,4-tri-O-benzyl-α-L-fucopyranosyl)-(1<*>2)>-O-(4,6-di-O-acetyl-β-D-galactopyranosyl)-(1<*>4)-3,6-di-O-benzyl-2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside