You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as N-benzyl-1-methyl-4-[2-(2-methylpyrazol-3-yl)pyrimidin-5-yl]pyrrole-2-carboxamide using the IUPAC nomenclature.
user
C21H20N6O
assistant