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 6-(2-bromo-4-but-2-ynoxyphenyl)-1-(2,2-difluoroethyl)-3-iodo-3,4-dihydropyridin-2-one ?
user
C17H15BrF2INO2
assistant