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 2,6-dichloro-5-fluoro-N-[(3-fluorophenyl)methyl]-N-(oxolan-2-ylmethyl)pyridine-3-carboxamide .
user
C18H16Cl2F2N2O2
assistant