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 (3S)-3-[[6-[2-[2-(trifluoromethoxy)anilino]pyrimidin-5-yl]pyrazin-2-yl]amino]pyrrolidine-1-carboxylic acid .
user
C20H18F3N7O3
assistant