You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(2-propan-2-ylimidazol-1-yl)-1-[2-[3-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazol-5-yl]morpholin-4-yl]ethanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H22F3N5O3
assistant