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 (5S,10bR)-7,9-dibromo-2-(4-bromophenyl)-5-(3,4-dimethoxyphenyl)-5,10b-dihydro-1H-pyrazolo[1,5-c][1,3]benzoxazine ?
user
C24H19Br3N2O3
assistant