You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-hydroxy-3-[4-[5-(3,4,5-trichlorophenyl)-5-(trifluoromethyl)-4H-1,2-oxazol-3-yl]phenyl]azetidine-1-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H14Cl3F3N2O4
assistant