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 3-methyl-7-[6-(trifluoromethyl)pyridin-3-yl]sulfonyl-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-4-one .
user
C14H13F3N4O3S
assistant