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 ethyl 3-methyl-5-[[2-(3-methyl-4-oxothieno[2,3-d]pyrimidin-2-yl)sulfanylacetyl]amino]thiophene-2-carboxylate .
user
C17H17N3O4S3
assistant