(R)-quinuclidin-3-yl 2-(benzo[b]thiophen-7-yl)-2-(phenylamino)acetate 、
alpha-氯乙酰苯 在
乙醚 、
acetonitrile-water 作用下,
以
乙酸乙酯 为溶剂,
反应 16.0h,
以to obtain (3R)-3-(2-(benzo[b]thiophen-7-yl)-2-(phenylamino)acetoxy)-1-(2-oxo-2-phenylethyl)-1-azoniabicyclo[2.2.2]octane chloride (26.6 mg, 21.2% yield)的产率得到(3R)-3-(2-(benzo[b]thiophen-7-yl)-2-(phenylamino)-acetoxy)-1-(2-oxo-2-phenylethyl)-1-azoniabicyclo[2.2.2]octane chloride