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-[[6-(3,5-dimethylpyrazol-1-yl)pyridazin-3-yl]amino]phenyl]-1-(4-methylphenyl)-5-oxopyrrolidine-3-carboxamide ?
user
C27H27N7O2
assistant