You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[6-(cyclopropylamino)pyridin-3-yl]-[(3S)-3-(5-methyl-1H-pyrazol-3-yl)piperidin-1-yl]methanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H23N5O
assistant