Substituent Reactivity and Tautomerism of Isoguanosine and Related Nucleosides
作者:Frank Seela、Changfu Wei、Zygmunt Kazimierczuk
DOI:10.1002/hlca.19950780718
日期:1995.11.1
spectra compared with regard to the alkylation position. Also the tautomeric forms of isoguanine nucleosides were determined UV-spectrophotometrically in aqueous and nonaqueous solution. Isoguanosine (1a), its 2′-deoxy analogue 1b as well as the N6-methyl- and 8-substituted derivatives form lactam tautomers in aqueoussolution, whereas the lactim form is present in dioxane.