2-methoxycarbonylethyl 2-O-(2-O-acetyl-3,4,6-tri-O-benzoyl-α-D-mannopyranosyl)-3,4,6-tri-O-benzoyl-1-thio-α-D-mannopyranoside 在
甲醇 、
乙酰氯 作用下,
反应 14.0h,
以43%的产率得到2-methoxycarbonylethyl 2-O-(3,4,6-tri-O-benzoyl-α-D-mannopyranosyl)-3,4,6-tri-O-benzoyl-1-thio-α-D-mannopyranoside