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                                    标题
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                                                        (8R*,9aS*)-8-hydroxy-2-{2-[(4-methylpyridin-2-yl)amino]ethyl}tetrahydro-2H-pyrido[1,2-a]pyrazine-1,4(3H,6H)-dione
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                                    IUPAC标准名
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                                                        (8R,9aS)-8-hydroxy-2-{2-[(4-methylpyridin-2-yl)amino]ethyl}-octahydro-1H-pyrido[1,2-a]piperazine-1,4-dione
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                                    IUPAC传统名
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                                                        (8R,9aS)-8-hydroxy-2-{2-[(4-methylpyridin-2-yl)amino]ethyl}-hexahydropyrido[1,2-a]piperazine-1,4-dione
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