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 (7R)-7-[[(2R)-2-(3-chlorophenyl)-2-hydroxyethyl]amino]-7,8-dihydro-6H-cyclopenta[g][1,3]benzodioxole-2,2-dicarboxylic acid into molecular formula.
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C20H18ClNO7
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