You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-amino-N-(3-cyanophenyl)spiro[5H-benzo[h]quinazoline-6,4'-piperidine]-1'-carboxamide;1'-[(4-ethylphenyl)methyl]-N-methylspiro[5H-benzo[h]quinazoline-6,4'-piperidine]-2-amine;[2-(methylamino)spiro[8,9-dihydro-5H-benzo[h]quinazoline-6,4'-piperidine]-1'-yl]-(4-methylphenyl)methanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C75H80N14O2
assistant