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 (2Z,5S)-5-(3,4-dimethoxyphenyl)-7-methyl-3-oxo-2-(thiophen-2-ylmethylidene)-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate .
user
C23H22N2O5S2
assistant