You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[(3R)-1-[6-(cyclopropylamino)pyrimidin-4-yl]piperidin-3-yl]-N-(furan-2-ylmethyl)propanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H27N5O2
assistant