methyl 2,3-O-isopropylidene-6-O-tosyl-α-D-mannopyranoside 、
N,N'-硫羰基二咪唑 以
甲苯 为溶剂,
反应 4.0h,
以69.2%的产率得到Imidazole-1-carbothioic acid O-[(3aS,4S,6R,7R,7aS)-4-methoxy-2,2-dimethyl-6-(toluene-4-sulfonyloxymethyl)-tetrahydro-[1,3]dioxolo[4,5-c]pyran-7-yl] ester