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 2,3,4,5,6,6a-hexahydro-1H-pyrrolo[3,4-c]pyrrol-3a-yl-[4-[(E)-3-phenylprop-2-enyl]piperazin-1-yl]methanone;dihydrochloride into molecular formula.
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C20H30Cl2N4O
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