You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-tert-butylsulfanyl-N-[2-(dimethylamino)ethyl]-N-[[3-(trifluoromethyl)phenyl]methyl]acetamide into its molecular formula.
user
C18H27F3N2OS
assistant