You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3S,4S)-3-amino-1-[4-[2-[(2S)-1-(benzenesulfonyl)piperazin-2-yl]ethyl]-5-fluoropyridin-3-yl]-4-(4-chlorophenyl)-4-(3-fluorophenyl)butan-2-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C33H33ClF2N4O3S
assistant