phenylmethyl [6-chloro-8-[4-(1-methylpiperidin-4-yl)-5-oxo-4,5-dihydro-1,3,4-oxadiazol-2-yl]-2,3-dihydro-1,4-benzodioxin-5-yl]carbamate 在
氢溴酸 作用下,
以
乙醚 、
溶剂黄146 为溶剂,
生成
5-(8-Amino-7-chloro-2,3-dihydro-1,4-benzodioxin-5-yl)-3-(1-methylpiperidin-4-yl)-1,3,4-oxadiazol-2(3H)-one hydrobromide