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 (7S)-3-[(4-ethylphenyl)carbamoyl]-7-(2-methoxyphenyl)-4,7-dihydropyrazolo[1,5-a]pyrimidine-5-carboxylic acid into its molecular formula.
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C23H22N4O4
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