N-甲基马来酰亚胺 、
5-Pyrimidinecarboxaldehyde,1,2,3,4-tetrahydro-1,3,6-trimethyl-2,4-dioxo-, 5-(methylhydrazone) 以
1,4-二氧六环 为溶剂,
反应 20.0h,
以29%的产率得到1,3a-dihydro-3-(1,2,3,4-tetrahydro-1,3,6-trimethyl-2,4-dioxo-5-pyrimidinyl)-1,5-dimethylpyrrolo<3,4-c>pyrazole-4,6(1H,5H)-dione