You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-cyclohexyl-1-ethyl-7-methyl-8,9-diphenyl-4-azatricyclo[5.2.1.02,6]dec-8-ene-3,5,10-trione is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H31NO3
assistant