170306-55-5Relevant academic research and scientific papers
New [c,d]-fused purinediones: 2-Substituted 9-methyl-4,5-dihydro-6H-8H-pyrimido-[1,2,3-cd]purine-8,10(9H)-diones
Simo,Rybar,Alfoldi
, p. 837 - 840 (1995)
2-Alkyl- or 2-aryl-9-methyl-4,5-dihydro-6H,8H-pyrimido[1,2,3-cd]purine-8,10(9H)-di ones 5 were obtained either by a four-step synthesis starting from 6-chloro-5-nitro-3-methylpyrimidine-2,4(1H,3H)-dione (1) via 9-amino-7-methyl-3,4-dihydro-2H-pyrimido[1,6
