You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule N-[(2S)-2-(dimethylamino)-2-thiophen-2-ylethyl]-4-[(3S,5R)-3,5-dimethylpiperidin-1-yl]sulfonylbenzamide ?
user
C22H31N3O3S2
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