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-tert-butyl-5-sulfanyl-1-[4-(trifluoromethyl)phenyl]-3,4-dihydro-1H-isoquinoline-2-carboxamide .
user
C21H23F3N2OS
assistant