You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
8-cyclopentyl-2-[1-(2-methoxy-2-methylpropanoyl)piperidin-4-yl]-4-methyl-5,6-dihydropyrido[2,3-d]pyrimidin-7-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H34N4O3
assistant