You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 6-bromo-7-[(4,4-difluorocyclohexyl)methyl]-3-[5-(2,2,2-trifluoroethyl)-1H-pyrazol-4-yl]-1H-pyrrolo[3,2-b]pyridine into molecular formula.
user
C19H18BrF5N4
assistant