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 2-[[1,3-benzodioxol-5-ylmethyl(methyl)amino]methyl]-5-(furan-2-yl)-3H-thieno[2,3-d]pyrimidin-4-one .
user
C20H17N3O4S
assistant