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 [3-[[(4R)-7-(2-chlorophenyl)-3,4-dihydro-2H-chromen-4-yl]methylamino]pyridin-4-yl]methanediol is given. What is its corresponding molecular formula?
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C22H21ClN2O3
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