You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 1-[5-ethylsulfonyl-6-[3-methyl-6-(trifluoromethyl)imidazo[4,5-b]pyridin-2-yl]pyridin-3-yl]ethanone using the IUPAC nomenclature.
user
C17H15F3N4O3S
assistant