ethyl 8-carbamoyl-6-(3,5-dimethylisoxazol-4-yl)-5-fluoro-9H-carbazole-2-carboxylate 、
sodium hydroxide 在
盐酸 作用下,
以
四氢呋喃 、
甲醇 为溶剂,
反应 32.0h,
以to give 8-carbamoyl-6-(3,5-dimethylisoxazol-4-yl)-5-fluoro-9H-carbazole-2-carboxylic acid (300 mg, 0.817 mmol, 81% yield)的产率得到8-carbamoyl-6-(3,5-dimethylisoxazol-4-yl)-5-fluoro-9H-carbazole-2-carboxylic acid