(1RS,3RS,3aSR,6aRS)-methyl 3-[2-morpholino-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl]-4,6-dioxo-1,5-diphenylperhydropyrrolo[3,4-c]pyrrole-1-carboxylate 在
air 、
4-甲基苯磺酸吡啶 、
溶剂黄146 作用下,
以
甲醇 为溶剂,
反应 18.0h,
生成 methyl 3a-(1-methoxycarbonyl-4,6-dioxo-1,5-diphenylperhydropyrrolo[3,4-c]pyrrol-3-yl)-1,3a,4,5,6,6a-hexahydro-4,6-dioxo-1,5-diphenylpyrrolo[3,4-c]pyrrole-1-carboxylate