(6-Chloro-2-ethyl-1-oxo-indan-5-yloxy)-acetic acid 、
溴 在
氢溴酸 (2-Bromo-6-chloro-2-ethyl-1-oxo-indan-5-yloxy)-acetic acid 、
苯 作用下,
以
溶剂黄146 为溶剂,
以gives (1-oxo-2-bromo-2-ethyl-6-chloro-5-indanyloxy)acetic acid as white needles, m.p. 159.5°-160.5° C.的产率得到(2-Bromo-6-chloro-2-ethyl-1-oxo-indan-5-yloxy)-acetic acid