O-(2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl)-(1->6)-O-<(2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl)-(1->3)>-O-(2,4-di-O-acetyl-α-D-mannopyranosyl)-(1->6)-O-<(2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl)-(1->3)>-O-(2,4-di-O-acetyl-β-D-mannopyranosyl.. 在
三氟甲磺酸三甲基硅酯 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 40.0h,
以90%的产率得到O-(2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl)-(1->6)-O-<(2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl)-(1->3)>-O-(2,4-di-O-acetyl-α-D-mannopyranosyl)-(1->6)-O-<(2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl)-(1->3)>-O-(2,4-di-O-acetyl-β-D-mannopyranosyl..