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 [(1R,2S)-2-(aminomethyl)cyclopentyl]-[2-[5-(3-methylphenyl)-1H-imidazol-2-yl]pyrrolidin-1-yl]methanone;dihydrochloride is given. What is its corresponding molecular formula?
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C21H30Cl2N4O
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