You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl N-[1-[N'-[2-(tert-butylamino)-2-oxoethyl]-N-ethylcarbamimidoyl]piperidin-4-yl]-N-(cyclopropylmethyl)carbamate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H43N5O3
assistant