You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (E)-3-amino-N-[(2R)-2-(2-hydroxyethyl)-2-methyl-6-morpholin-4-yl-3H-1-benzofuran-5-yl]-2-pyrimidin-2-ylprop-2-enamide into molecular formula.
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C22H27N5O4
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