You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[5-[4-[3-methyl-4-(trifluoromethyl)phenyl]-6-(trifluoromethyl)pyrimidin-2-yl]-1,2,4-oxadiazol-3-yl]pyridin-2-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H12F6N6O
assistant