You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-methyl-4-[6-[3-(pyridin-2-ylamino)propylamino]pyrimidin-4-yl]piperazin-2-one by IUPAC nomenclature, provide its molecular formula.
user
C17H23N7O
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