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 N-(6-amino-1-benzyl-2,4-dioxopyrimidin-5-yl)-N-(3-methoxypropyl)-2-thiophen-3-ylacetamide .
user
C21H24N4O4S
assistant