1-deoxy-1-amino-3,4,5,7-tetra-O-benzyl-D-gluco-hept-2-ulopyranose 、
tert-butyl (N-triethylammonium sulfonyl)carbamate 以
四氢呋喃 为溶剂,
反应 21.0h,
以68%的产率得到(5S,7R,8R,9S,10R)-8,9,10-tribenzyloxy-7-(benzyloxymethyl)-6-oxa-2-thia-1,3-diazaspiro[4.5]decane-2,2-dioxide