You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 4-[4-[3-[[4-(azepan-1-yl)pyrimidin-2-yl]amino]pyrrolidin-1-yl]piperidin-1-yl]-4-oxobutanoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H40N6O3
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