(5Z)-3-[4-(dimethylamino)phenyl]-2-sulfanylidene-5-(thiophen-2-ylmethylidene)imidazolidin-4-one 、
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79%的产率得到[(2R,3R,4S,5R,6S)-3,4,5-triacetyloxy-6-[(4Z)-1-[4-(dimethylamino)phenyl]-5-oxo-4-(thiophen-2-ylmethylidene)imidazol-2-yl]sulfanyloxan-2-yl]methyl acetate