You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[[1-[1-[(1-cyanocyclohexyl)amino]-1-oxopropan-2-yl]piperidin-3-yl]methyl]-2-methylpropanamide into its molecular formula.
user
C20H34N4O2
assistant