You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1-(2,2-difluoroethyl)-N-[2-methyl-1-(2-methylphenyl)propan-2-yl]piperidine-4-carboxamide .
user
C19H28F2N2O
assistant