乙酸酐 、
allyl O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1->4)-O-(3,6-di-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl)-(1->4)-3,6-di-O-benzyl-α-D-mannopyranoside 在
吡啶 作用下,
反应 16.0h,
以83%的产率得到allyl O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1->4)-O-(3,6-di-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl)-(1->4)-2-O-acetyl-3,6-di-O-benzyl-α-D-mannopyranoside