You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance N-(3,4-dihydronaphtho[2,1-b][1]benzothiol-10-yl)-N-(11,11-dimethyl-9-phenylbenzo[b]fluoren-6-yl)dibenzofuran-3-amine .
user
C53H37NOS
assistant