You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule [(2S)-1-(2,4-difluoroanilino)-1-oxopropan-2-yl] 4-(2,3-dihydro-1H-inden-5-yl)-4-oxobutanoate ?
user
C22H21F2NO4
assistant