You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(2,5-dimethylphenyl)-N-(2-methyl-5-trimethylsilylphenyl)-5,17-diphenyl-8,14-dioxa-1-borapentacyclo[11.7.1.02,7.09,21.015,20]henicosa-2(7),3,5,9,11,13(21),15(20),16,18-nonaen-11-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C48H42BNO2Si
assistant