137063-87-7Relevant articles and documents
N23-ethenoguanosine and IA′-metamorphosine: 5N NMR spectroscopy and elucidation of physico-chemical properties by kinetic and equilibrium measurements
Glemarec, Corine,Besidsky, Yevgeny,Chattopadhyaya, Jyoti,Kusmierek, Jaroslaw,Lahti, Marjo,Oivanen, Mikko,Loennberg, Harri
, p. 6689 - 6704 (1991)
Tautomerism, protonation and electronic properties of the base moieties of IA′-metamorphosine (1a), N2,3-ethenoguanosine (2a) and O6-benzyl-N2,3-ethenoguanosine (3a were investigated by 15N NMR spectroscopy. pKa values of the same compounds were determined spectrophotometrically, and hydrolytic stability of the N-glycosidic bond was studied at various hydronium ion concentrations. The base stacking ability and metal ion complexation of N2,3-ethenoguanosine and its 9-ethyl counterpart (7) were elucidated by phase distribution and potentiometric measurements.