You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
22,22-dimethyl-24-phenyl-3-(4-phenylquinazolin-2-yl)-15-oxa-3,24-diazahexacyclo[11.11.0.02,10.04,9.014,23.016,21]tetracosa-1(13),2(10),4,6,8,11,14(23),16,18,20-decaene is the IUPAC name of a molecule. Please give its molecular formula.
user
C43H30N4O
assistant