You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2S,3R)-1,1,1-trifluoro-3-[2-fluoro-5-[(2-methyl-1,3-oxazole-4-carbonyl)amino]phenyl]butan-2-yl] N'-methylcarbamimidate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H18F4N4O3
assistant