benzyl 2-acetamido-3-C-(2'-tbutyldimethylsilyl-α-L-galactopyranosyl)methyl-2,3-dideoxy-4,6-O-isopropylidene-α-D-glucopyranoside 、
乙酸酐 在
吡啶 作用下,
以100%的产率得到benzyl 2-acetamido-3-C-(3',4',6'-tri-O-acetyl-2'-tbutyldimethylsilyl-α-L-galactopyranosyl)methyl-2,3-dideoxy-4,6-O-isopropylidene-α-D-glucopyranoside