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 tert-butyl 3-(fluoromethyl)-7-(2,2,2-trifluoroethylsulfonyl)-3,4-dihydro-1H-isoquinoline-2-carboxylate .
user
C17H21F4NO4S
assistant