879771-60-5Relevant articles and documents
Synthesis of 6-substituted 5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidine-2,4- diones and 2-thioxo-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-4-ones
Aksinenko,Sokolov,Goreva,Epishina,Pushin
experimental part, p. 1543 - 1546 (2009/09/30)
Three-component reactions of 6-aminouracils and 6-aminothiouracils with formaldehyde and primary amines gave 6-alkyl-5,6,7,8-tetrahydropyrimido[4,5-d] pyrimidine-2,4-diones and 6-alkyl-2-thioxo-5,6,7,8-tetrahydropyrimido[4,5-d] pyrimidin-4-ones.