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 tert-butyl N-[(2S)-1-oxo-1-(3-pyrrolidin-1-ylpropylamino)-3-thiophen-2-ylpropan-2-yl]carbamate .
user
C19H31N3O3S
assistant