You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule N-(2,6-dimethylphenyl)-2-(5-methyl-4-oxo-3-phenyl-6-propylthieno[2,3-d]pyrimidin-2-yl)sulfanylacetamide ?
user
C26H27N3O2S2
assistant