Li NS, Lu J, Piccirilli JA. Synthesis of 5'-Thio-3'-O-ribonucleoside Phosphoramidites.
J Org Chem 2017;
82:12003-12013. [PMID:
29049877 DOI:
10.1021/acs.joc.7b01484]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The chemical synthesis of phosphoramidite derivatives of all four 5'-deoxy-5'-thioribonucleosides is described. These phosphoramidites contained trityl (A, G, C, and U), dimethoxytrityl (A and G), or tert-butyldisulfanyl (G) as the 5'-S-protecting group. The application of several of these phosphoramidites for solid-phase synthesis of oligoribonucleotides containing a 2'-O-photocaged 5'-S-phosphorothiolate linkage or 5'-thiol-labeled RNAs is also further investigated.
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