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-[[(2R)-2,3-dihydro-1-benzofuran-2-yl]methylamino]-2-oxoethyl] 2-(dimethylamino)pyridine-3-carboxylate into molecular formula.
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C19H21N3O4
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