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 identified by N,4,5-trimethyl-6-[(3R)-3-[(1-methylpyrrol-3-yl)methylamino]pyrrolidin-1-yl]pyrimidine-2-carboxamide ?
user
C18H26N6O
assistant