3-deoxy-1,2:5,6-di-O-isoprolylidene-3-isothiocyanato-3-C-methoxycarbonyl-α-D-glucofuranose 、
正丁胺 以
四氢呋喃 为溶剂,
反应 1.0h,
以84%的产率得到(5S,6S,8R,9R,4'R)-3-butyl-6-(2',2'-dimethyl-1',3'-dioxolan-4'-yl)-8,9-(dimethylmethylenedioxy)-2-thioxo-7-oxa-1,3-diazaspiro[4.4]nonan-4-one