You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[(2S)-1-[2-[2-(cyclopropylamino)-2-oxoacetyl]hydrazinyl]-3-methyl-1-oxobutan-2-yl]-4-fluorobenzamide by IUPAC nomenclature, provide its molecular formula.
user
C17H21FN4O4
assistant