You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[4-(23-azahexacyclo[18.2.1.03,8.09,22.010,15.016,21]tricosa-1,3,5,7,9(22),10,12,14,16(21),17,19-undecaen-23-yl)phenyl]-4-(4-phenylphenyl)-[1]benzofuro[3,2-d]pyrimidine is the IUPAC name of a molecule. Please give its molecular formula.
user
C50H29N3O
assistant