You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4-aminopiperidin-1-yl)-[1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperidin-4-yl]methanone is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H22ClF3N4O
assistant