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 identified by 4-(difluoromethoxy)-N-[2-(6,7-dihydro-4H-thieno[3,2-c]pyridin-5-yl)-2-oxoethyl]benzamide ?
user
C17H16F2N2O3S
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