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-amino-2,6-dimethyl-3-(6-methylidene-2-oxopiperidin-3-yl)thieno[2,3-d]pyrimidin-4-one .
user
C14H16N4O2S
assistant