Sulfonamide-bridged nucleic acid: synthesis, high RNA selective hybridization, and high nuclease resistance.
2014
2′-N,4′-C-(N-Methylamino)sulfonylmethylene-bridged thymidine (SuNA), which has a six-membered linkage including a sulfonamide moiety, was synthesized and introduced into oligonucleotides. The oligonucleotides containing SuNA exhibited excellent nuclease resistance, a high affinity toward single-stranded RNA, and a low affinity toward single-stranded DNA compared to the natural oligonucleotide.
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