You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-tert-butyl-11,17-bis(4-tert-butylphenyl)-14,21,21,24,24-pentamethyl-9-oxa-11,17-diaza-1-boraheptacyclo[14.11.1.02,10.03,8.012,28.018,27.020,25]octacosa-3(8),4,6,12,14,16(28),18,20(25),26-nonaene is the IUPAC name of a molecule. Please give its molecular formula.
user
C53H63BN2O
assistant