The efficient synthesis of oligonucleotides containing 2'-O-beta-D-ribofuranosyl (and beta-D-ribopyranosyl)nucleosides, 2'-O-alpha-D-arabinofuranosyl (and alpha-L-arabinofuranosyl)nucleosides. 2'-O-beta-D-erythrofuranosylnucleosides, and 2'-O-(5'-amino-5-deoxy-beta-D-ribofuranosyl)nucleosides have been developed.
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