You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 3-(2-methoxyethyl)-2-[(E)-3-phenylprop-2-enyl]sulfanyl-5H-pyrimido[5,4-b]indol-4-one into its molecular formula.
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C22H21N3O2S
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