描述:
6-amino-9,9-dimethyl-5-(3,4-dimethoxyphenyl)-1,2,3,4,5,7,8,9,10,12-decahydrobenzo[b]pyrimido[5,4-g][1,8]naphthyridine-2,4,7-trione 、 formamide 反应 6.0h,
以47%的产率得到5,5-dimethyl-13-(3,4-dimethoxyphenyl)-5,6,8,9,10,11,12,13-octahydro-4H-pyrimido[5',4':6,7][1,8]naphthyridino[4,3,2-de]quinazoline-10,12-dione