You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[2-[(2R)-1-acetylpiperidin-2-yl]-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-2-(4-fluorophenoxy)ethanone into its molecular formula.
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C23H28FN5O3
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