You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(3R,4S)-4-(4-methoxyphenyl)-1-methylpyrrolidin-3-yl]piperidine-1-sulfonamide;hydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H28ClN3O3S
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