phenyl O-(2,3,4,6-tetra-O-benzyl-α-D-galactopyranosyl)-(1->4)-O-(6-O-benzoyl-2,3-di-O-pivaloyl-β-D-galactopyranosyl)-(1->4)-2,3,6-tri-O-pivaloyl-1-thio-β-D-glucopyranoside 在
N-溴代丁二酰亚胺(NBS) 、
氟化氢吡啶 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以89%的产率得到O-(2,3,4,6-tetra-O-benzyl-α-D-galactopyranosyl)-(1->4)-O-(6-O-benzoyl-2,3-di-O-pivaloyl-β-D-galactopyranosyl)-(1->4)-2,3,6-tri-O-pivaloyl-1-thio-β-D-glucopyranosyl fluoride