You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-cyclohexyl-2-N-(3-methoxyphenyl)-14,14-dimethyl-9-N-(3-methylphenyl)-2-N,9-N-diphenylpentacyclo[13.3.1.05,18.08,17.011,16]nonadeca-1(19),2,4,6,8,10,15,17-octaene-2,9-diamine is the IUPAC name of a molecule. Please give its molecular formula.
user
C53H50N2O
assistant