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 (2S,4R)-2-formyl-4-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]pyrrolidine-1-carboxylate .
user
C16H27NO5
assistant