You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 2-[(1S)-2-[(1S)-cyclohex-3-ene-1-carbonyl]-6,7-dimethoxy-3,4-dihydro-1H-isoquinolin-1-yl]acetic acid is given. What is its corresponding molecular formula?
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C20H25NO5
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