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'-(2,3-dihydro-1,4-benzodioxin-6-yl)-N-[(1-thiophen-2-ylcyclopentyl)methyl]oxamide .
user
C20H22N2O4S
assistant