You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-(cyanomethyl)-4-[(3R)-3-(dimethylamino)pyrrolidin-1-yl]-5,6-dimethylpyrimidine-2-carboxamide into molecular formula.
user
C15H22N6O
assistant