You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (2S)-N-[3,3-dimethyl-1-[[2-(3-oxopiperazin-1-yl)acetyl]amino]butan-2-yl]-2-morpholin-4-ylpropanamide .
user
C19H35N5O4
assistant