2,4,6-trimethyl-2H,4H-pyrimido[4,5-c]isoquinoline-1,3,7,10-tetraone 、
(E)-1,1-dimethyl-2-(2-methylallylidene)hydrazine 以
乙腈 为溶剂,
反应 24.0h,
以64%的产率得到8-dimethylamino-2,4,6,10-tetramethyl-7a,8,11,11a-tetrahydro-2H,4H-pyrido[3,2-g]pyrimido[4,5-c]isoquinoline-1,3,7,12-tetraone