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 6-(2,6-difluorophenyl)-5-fluoro-N-[4-[(2S)-2-fluorooxan-2-yl]pyridin-3-yl]pyridine-2-carboxamide .
user
C22H17F4N3O2
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