You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule [2-(cyclohexylcarbamoylamino)-2-oxoethyl] 2-(4-oxo-2,3-dihydro-1,5-benzoxazepin-5-yl)acetate into molecular formula.
user
C20H25N3O6
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