phenyl 4,6-di-O-acetyl-2-O-benzoyl-3-O-(2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl)-1-thio-α-D-mannopyranoside 在
3 A molecular sieve 、
溴 、
silver trifluoromethanesulfonate 作用下,
以
二氯甲烷 为溶剂,
反应 8.75h,
生成 O-<4,6-di-O-acetyl-2-O-benzoyl-3-O-(2,3,4,6-tetra-O-acetyl-αD-mannopyranosyl)-α-D-mannopyranosyl>-N
α-(fluoren-9-ylmethoxycarbonyl)-L-trans-hydroxyproline pentafluorophenyl ester