methyl 5-(1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-1-[(4-nitrophenyl)sulfonyl]-1,2,3,6-tetrahydropyridine-2-carboxylate 在
potassium carbonate 、
苯硫酚 作用下,
以
N,N-二甲基甲酰胺 、
甲苯 为溶剂,
反应 52.0h,
生成 methyl 10-(1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-6a,8,11,12a-tetrahydro-6H-chromeno[3,4-b]indolizine-7a(7H)-carboxylate