You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 7,7-dimethyl-3-(4-methylphenyl)-4-phenyl-2,3,3a,4,6,8,9,9a-octahydro-1H-pyrazolo[3,4-b]quinolin-5-one ?
user
C25H29N3O
assistant