You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-2-amino-4-cyclohexyl-N-methyl-2-[[(1S,3R)-3-(pyridin-3-ylmethylamino)cyclohexyl]methyl]butanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C24H40N4O
assistant