You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as N-[(6,7-dimethoxy-4-oxo-3H-quinazolin-2-yl)methyl]-N-ethyl-2-(4-oxo-1,3-thiazolidin-3-yl)acetamide using the IUPAC nomenclature.
user
C18H22N4O5S
assistant