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 2-[1-(3-tert-butylthieno[2,3-c]pyridin-5-yl)ethylsulfanyl]-6-(trifluoromethyl)pyrimidin-4-amine .
user
C18H19F3N4S2
assistant