You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 4-[[2-[(2S)-1-[2-(4-formylpiperazin-1-yl)acetyl]-3-oxopiperazin-2-yl]acetyl]amino]benzoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H29N5O6
assistant