Issue 8, 2018

Novel conformationally constrained 2′-C-methylribonucleosides: synthesis and incorporation into oligonucleotides

Abstract

Synthesis of two novel conformationally constrained bicyclic ribonucleoside phosphoramidites bearing a 2′-C-methyl substituent has been accomplished. These phosphoramidites were used to incorporate the corresponding 2′-C-methyl nucleotides into oligonucleotides and to study their effects on duplex thermal stability. Whereas the C2′–O4′-linked LNA-type derivative induced severe destabilization of duplexes formed with complementary DNA and RNA, the C3′–O4′-linked derivative induced RNA-selective hybridization with increased affinity relative to that of the unmodified DNA-based probe.

Graphical abstract: Novel conformationally constrained 2′-C-methylribonucleosides: synthesis and incorporation into oligonucleotides

Supplementary files

Article information

Article type
Paper
Submitted
30 Okt 2017
Accepted
24 Jän 2018
First published
24 Jän 2018

Org. Biomol. Chem., 2018,16, 1312-1321

Novel conformationally constrained 2′-C-methylribonucleosides: synthesis and incorporation into oligonucleotides

K. Vejlegaard, C. Wegeberg, V. McKee and J. Wengel, Org. Biomol. Chem., 2018, 16, 1312 DOI: 10.1039/C7OB02663C

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