ethyl 4-(2-(4-(4-(4-(2-ethoxy-2-oxoethoxy)-3-nitrophenoxy)butyl)piperazin-1-yl)phenoxy)-butanoate 在
iron(III) chloride hexahydrate
铁粉 、
溶剂黄146 作用下,
以
乙醇 为溶剂,
以50%的产率得到ethyl 4-(2-(4-(4-(3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-yloxy)butyl)piperazin-1-yl)phenoxy)butanoate