1,N2-ethenoguanine and N2,3-ethenoguanine. Synthesis and comparison of the electronic spectral properties of these linear and angular triheterocycles related to the Y bases.
D055598:Chemical Phenomena; D002621:Chemistry; D006147:Guanine / Q000031:analogs & derivatives* / Q000138:chemical synthesis; D006863:Hydrogen-Ion Concentration; D009682:Magnetic Resonance Spectroscopy; D012263:Ribonucleosides; D013056:Spectrophotometry, Ultraviolet
D012263:Ribonucleosides; D006147:Guanine