α-(aminomethyl)-2-thiophenmethanol 、
2,3-dihydro-2,2-dimethyl-6-(2-bromoethoxy)-4H-1,3-benzoxazin-4-one 在
乙酸乙酯 、
potassium hydrogencarbonate 、
magnesium sulfate 作用下,
以
三乙胺 为溶剂,
反应 1.0h,
以yielding crude α-[N-[2-(3-carbamoyl-4-hydroxy-phenoxy)-ethyl]-amino-methyl]-2-thiophen-methanol in the form of a crystalline mass which的产率得到α-[N-[2-(3-carbamoyl-4-hydroxy-phenoxy)-ethyl]-amino-methyl]-2-thiophen-methanol