You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(4R,6S,14S,18R)-4-(cyanocarbamoyl)-2,15-dioxo-14-(2,2,2-trifluoroethoxycarbonylamino)-3,16-diazatricyclo[14.3.0.04,6]nonadec-7-en-18-yl] 4-fluoro-1,3-dihydroisoindole-2-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C31H34F4N6O7
assistant