You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(3-isoquinolin-3-yl-5-methylphenyl)-N,14-diphenyl-9-pyridin-2-yl-9,14-diazapentacyclo[11.7.0.02,10.03,8.015,20]icosa-1(13),2(10),3(8),4,6,11,15,17,19-nonaen-6-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C51H35N5
assistant