You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
9-[11-tert-butyl-17-[3,6-di(propan-2-yl)carbazol-9-yl]-8,14-dithia-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-5-yl]-3,6-di(propan-2-yl)carbazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C58H57BN2S2
assistant