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 6-(2-chlorophenyl)-8-[(2-ethylsulfonylphenyl)methyl]-2-[4-(4-methylpiperazin-1-yl)anilino]pyrido[2,3-d]pyrimidin-7-one;8-[(2-ethylsulfonylphenyl)methyl]-2-[4-(4-methylpiperazin-1-yl)anilino]-6-phenylpyrido[2,3-d]pyrimidin-7-one;8-[(2-ethylsulfonylphenyl)methyl]-2-[4-(4-methylpiperazin-1-yl)anilino]-6-pyridin-3-ylpyrido[2,3-d]pyrimidin-7-one;2-[4-(4-methylpiperazin-1-yl)anilino]-8-[(2-propan-2-ylsulfonylphenyl)methyl]pyrido[2,3-d]pyrimidin-7-one .
user
C126H132ClN25O12S4
assistant