N-甲基马来酰亚胺 、
1,2,3,4-tetrahydro-1,3-dimethyl-6-morpholinomethyl-2,4-dioxopyrimidine-5-carbaldehyde N,N-dimethylhydrazone 以
甲苯 为溶剂,
以76%的产率得到(5S,5aS,8aR,9S)-5-(N',N'-Dimethyl-hydrazino)-1,3,7-trimethyl-9-morpholin-4-yl-5,5a,8a,9-tetrahydro-1H-pyrrolo[3,4-g]quinazoline-2,4,6,8-tetraone