Synthesis of oligonucleotides containing pyrazolo[3,4-d ]pyrimidines: The influence of 7-substituted 8-aza-7-deazaadenines on the duplex structure and stability
作者:Frank Seela、Matthias Zulauf
DOI:10.1039/a808769e
日期:——
synthesis of various oligonucleotidescontaining the 8-aza-7-deazaadenine system instead of that of adenine. Their Tm-values were measured and their thermodynamic data were determined. The replacement of adenine residues by 8-aza-7-deazaadenine 1a does not significantly influence the duplex stability, while the incorporation of 7-substituted derivatives 1b–e led to much more stable duplexes compared with