You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (7R)-N,2-dimethyl-5-[(2-oxo-3,4-dihydro-1H-quinolin-6-yl)sulfonyl]-6,7-dihydro-4H-pyrazolo[4,3-c]pyridine-7-carboxamide .
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C18H21N5O4S
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