4-苯基-4-羟基哌啶 、
7-oxo-4,5,6,7-tetrahydro-benzo[b]thiophene-3-sulfonyl chloride 以the title compound (72 mg) was obtained as a colorless amorphous substance, in the same way as Preparation Example 41的产率得到3-(4-hydroxy-4-phenyl-piperidine-1-sulfonyl)-5,6-dihydro-4H-benzo[b]thiophene-7-one