You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-[3-(2,4-dimethylphenyl)-2,4-dioxothieno[3,2-d]pyrimidin-1-yl]-N-[(2S)-4-phenylbutan-2-yl]acetamide .
user
C26H27N3O3S
assistant