You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3,5-dichloro-N-[3-[4-[(6-methylpyridin-2-yl)oxy-pyridin-4-ylmethyl]piperidin-1-yl]butyl]pyridine-4-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H31Cl2N5O2
assistant