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                                    标题
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                                                        (7S,9aR)-N-benzyl-7-isobutyl-6,9-dioxooctahydro-2H-pyrazino[1,2-a]pyrazine-2-carboxamide
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                                    IUPAC标准名
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                                                        (7S,9aR)-N-benzyl-7-(2-methylpropyl)-6,9-dioxo-octahydro-1H-pyrazino[1,2-a]piperazine-2-carboxamide
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                                    IUPAC传统名
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                                                        (7S,9aR)-N-benzyl-7-(2-methylpropyl)-6,9-dioxo-hexahydropyrazino[1,2-a]piperazine-2-carboxamide
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