A General Synthesis of C8-Arylpurine Phosphoramidites
AbstractA general scheme for the synthesis of C8-arylpurine phosphoramidites has been developed. C8-Arylation of C8-bromo-2′-deoxyguanosine is the key step and has been achieved through the use of a Suzuki coupling. Since the coupling reaction is conducted under aqueous conditions, it is unnecessary to protect and then deprotect the hydroxyl groups, thus saving several steps and improving overall yields. Once the C8-arylgroup is introduced, the glycosidic bond becomes very sensitive to acid catalyzed cleavage. Protection of the amino groups as the corresponding N,N-dimethylformamidine derivative improves stability of the derivatives. Synthetic C8-arylpurines were successfully used to prepare synthetic oligonucleotides.
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Vongsutilers, V.; Daft, J.R.; Shaughnessy, K.H.; Gannett, P.M. A General Synthesis of C8-Arylpurine Phosphoramidites. Molecules 2009, 14, 3339-3352.
Vongsutilers V, Daft JR, Shaughnessy KH, Gannett PM. A General Synthesis of C8-Arylpurine Phosphoramidites. Molecules. 2009; 14(9):3339-3352.Chicago/Turabian Style
Vongsutilers, Vorasit; Daft, Jonathan R.; Shaughnessy, Kevin H.; Gannett, Peter M. 2009. "A General Synthesis of C8-Arylpurine Phosphoramidites." Molecules 14, no. 9: 3339-3352.