You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule (1R)-1-[(1S)-6,7-dimethoxy-2-[(4-methylphenyl)methyl]-3,4-dihydro-1H-isoquinolin-1-yl]propan-1-amine into molecular formula.
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C22H30N2O2
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