5-[4-(Dimethylamino)benzylidene]-3-[4-(dimethylamino)phenyl]-2-thioxo-4-imidazolidinone 、
2,3,4,6-四乙酰氧基-alpha-D-吡喃葡萄糖溴化物 在
sodium hydride 作用下,
以
乙腈 为溶剂,
反应 12.5h,
以86%的产率得到[(2R,3R,4S,5R,6S)-3,4,5-triacetyloxy-6-[(4Z)-1-[4-(dimethylamino)phenyl]-4-[[4-(dimethylamino)phenyl]methylidene]-5-oxoimidazol-2-yl]sulfanyloxan-2-yl]methyl acetate