You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule 3-(2-amino-6-oxo-1H-pyrimidin-4-yl)-N-[[(3S)-1-ethylpiperidin-3-yl]methyl]-N-methylbenzamide ?
user
C20H27N5O2
assistant