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 N-(2,3,3a,4,6,7-hexahydro-1H-pyrano[3,4-c]pyrrol-7a-ylmethyl)benzamide;hydrochloride into molecular formula.
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C15H21ClN2O2
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