《Azoles and azines: CVII. Synthesis of 5H-pyrano[2,3-d:6,5-d’]dipyrimidine-2,4,6,8(1H,3H,7H,9H)-tetrones and their 2,8-dithio analogs》 was written by Moskvin, A. V.; Polkovnikova, I. I.; Ivin, B. A.. Formula: C5H6N2O3 And the article was included in Russian Journal of General Chemistry (Translation of Zhurnal Obshchei Khimii) on August 31 ,1998. The article conveys some information:
5H-Pyrano[2,3-d:6,5-d’]dipyrimidine-2,4,6,8(1H,3H,7H,9H)-tetrones were prepared by treatment with a POCl3-P2O5 mixture of pyridinium salts of 5,5′-arylmethylenebisbarbituric acids or by condensation of 6-methoxyuracil with aromatic aldehydes or formaldehyde, followed by demethylation of intermediate 4,6-dimethoxy-5H-pyrano[2,3-d:6,5-d’]dipyrimidine-2,8(1H,9H)-diones. 2,8-Dithioxo-1,2,3,4,6,7,8,9-octahydro-5H-pyrano[2,3-d:6,5-d’]dipyrimidine-4,6-diones are formed by reaction of pyridinium salts of 5,5′-arylmethylenebis(2-thiobarbituric) acids with trifluoroacetic anhydride. After reading the article, we found that the author used 6-Methoxypyrimidine-2,4(1H,3H)-dione(cas: 29458-38-6Formula: C5H6N2O3)
6-Methoxypyrimidine-2,4(1H,3H)-dione(cas: 29458-38-6) belongs to pyrimidine. Pyrimidine nucleotide derivatives have a wide range of biological applications. For example, pyrimidine derivatives are useful in DNA repair studies involving cancer and epigenetics.Formula: C5H6N2O3
Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia