You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (4-nitrophenyl)methyl (1R,2S)-2-(4-fluorophenyl)-1-[(2-methylpropan-2-yl)oxycarbonylamino]cyclopropane-1-carboxylate into its molecular formula.
user
C22H23FN2O6
assistant