You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule N-[1-(2-hydroxy-2-methylpropyl)-3,5-dimethylpyrazol-4-yl]-2-(2-methoxy-4-piperazin-1-ylanilino)-5,6-dihydropyrimido[4,5-e]indolizine-7-carboxamide .
user
C31H39N9O3
assistant