(2S)-1-[5-chloro-3-(2-methoxyphenyl)-2-oxo-2,3-dihydro-1H-indol-3-yl]-N,N-dimethylpiperidine-2-carboxamide 、
2,5-二(2,2,2-三氟乙氧基)-苯磺酰氯 以238 mg of the title compound (colorless amorphous) was obtained by a similar method to Example 2的产率得到(2S)-1-[1-{[2,5-bis(2,2,2-trifluoroethoxy)phenyl]sulfonyl}-5-chloro-3-(2-methoxyphenyl)-2-oxo-2,3-dihydro-1H-indol-3-yl]-N,N-dimethylpiperidine-2-carboxamide