5-fluoro-9-(2-hydroxy-ethyl)-2,3,4,9-tetrahydro-1H-carbazole-4-carboxylic acid diethylamide 、
7-fluoro-9-(2-hydroxy-ethyl)-2,3,4,9-tetrahydro-1H-carbazole-4-carboxylic acid diethylamide 、
吡啶 、
甲基磺酰氯 在
盐酸 、
水 、 crude material 、
乙酸乙酯 、
methanesulfonic acid 2-(4-diethylcarbamoyl-7-fluoro-1,2,3,4-tetrahydro-carbazol-9-yl)-ethyl ester 、
methanesulfonic acid 2-(4-diethylcarbamoyl-5-fluoro-1,2,3,4-tetrahydro-carbazol-9-yl)-ethyl ester 作用下,
以
二氯甲烷 为溶剂,
反应 16.33h,
以21 mL/min) to afford 10 mg (1%) of methanesulfonic acid 2-(4-diethylcarbamoyl-7-fluoro-1,2,3,4-tetrahydro-carbazol-9-yl)-ethyl ester as a white solid and 30 mg (9%) of a mixture of methanesulfonic acid 2-(4-diethylcarbamoyl-7-fluoro-1,2,3,4-tetrahydro-carbazol-9-yl)-ethyl ester and methanesulfonic acid 2-(4-diethylcarbamoyl-5-fluoro-1,2,3,4-tetrahydro-carbazol-9-yl)-ethyl ester as a white solid的产率得到methanesulfonic acid 2-(4-diethylcarbamoyl-7-fluoro-1,2,3,4-tetrahydro-carbazol-9-yl)-ethyl ester