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-(3,5-dimethylphenyl)-2-[[6-oxo-4-(propan-2-yloxymethyl)-1H-pyrimidin-2-yl]sulfanyl]acetamide ?
user
C18H23N3O3S
assistant