You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
8-cyclopentyl-5-methyl-2-[4-[3-(1H-1,2,4-triazol-5-ylsulfonyl)pyrrolidin-1-yl]anilino]pyrido[2,3-d]pyrimidin-7-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H28N8O3S
assistant