ethyl 2-(2-bromophenylamino)-6-benzoxazolylacetate 、
sodium hydroxide 在
水 作用下,
以
tetrahydrofuran methanol 为溶剂,
反应 17.5h,
以whereby 2-(2-bromophenylamino)-6-benzoxazolylacetic acid (3.40 g, 93%) was obtained as a white crystalline powder的产率得到2-(2-bromophenylamino)-6-benzoxazolylacetic acid