You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (3R)-1-[(3,5-dimethyl-4-oxo-1H-pyridin-2-yl)methyl]-N-methylpyrrolidine-3-carboxamide .
user
C14H21N3O2
assistant