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What is the molecular formula of the compound with this IUPAC name 1-[(8R)-4-[(Z)-2-amino-4-iminobut-2-enyl]-8-pyrrolidin-1-yl-3,4a,5,7,8,8a-hexahydro-2H-pyrano[3,4-b]pyrazin-1-yl]-2-(3,4-dichlorophenyl)ethanone ?
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C23H31Cl2N5O2
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