5-Aza-7-deazaguanine explained

5-Aza-7-deazaguanine or 2-aminoimidazo[1,2-a][1,3,5]triazin-4(1H)-one is a 5-Aza-7-deazapurine base that is an isomer of guanine. It is used as a nucleobase of hachimoji DNA, in which it pairs with 6-Amino-5-nitropyridin-2-one.[1]

References

  1. Hoshika. Shuichi. etal. 22 February 2019. Hachimoji DNA and RNA: A genetic system with eight building blocks . Science. 363. 6429. 884–887. 10.1126/science.aat0971. 30792304. 6413494. 2019Sci...363..884H.