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 5,6-dimethyl-2-[(1R)-1-[(4-prop-2-enyl-1,2,4-triazol-3-yl)sulfanyl]ethyl]-3H-thieno[2,3-d]pyrimidin-4-one .
user
C15H17N5OS2
assistant