You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Please write the molecular formula of the molecule (3aS,6aR)-2-[1-(naphthalen-1-ylamino)-1-oxopropan-2-yl]-1,3,4,5,6,6a-hexahydrocyclopenta[c]pyrrole-3a-carboxylic acid;hydrochloride .
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C21H25ClN2O3
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