doi: 10.1093/nar/11.5.1325.
Studies on transfer ribonucleic acids and related compounds. XLV. Block condensation of ribooligonucleotides containing 2'-O-tetrahydrofuranyl-5'-O-dimethoxytritylnucleosides
- PMID: 6828384
- PMCID: PMC325799
- DOI: 10.1093/nar/11.5.1325
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Studies on transfer ribonucleic acids and related compounds. XLV. Block condensation of ribooligonucleotides containing 2'-O-tetrahydrofuranyl-5'-O-dimethoxytritylnucleosides
Nucleic Acids Res.
.
Free PMC article
Abstract
2'-O-Tetrahydrofuranyl-5'-O-dimethoxytrityl-N-protected nucleosides were phosphorylated to give the 3'-(o-chlorophenyl) phosphates which were then condensed with 3',5'-unprotected nucleosides to elongate the chain in the 3'-direction. The 5'-dimethoxytrityl group of these oligonucleotides was selectively deblocked by treatment with zinc bromide. The rate of removal of the dimethoxytrityl group differed in each nucleotide. A dodecamer containing a termination codon UAG, U(AGU)3AG, was synthesized by elongating the chain in the 5'-direction using the selective dedimethoxytritylation followed by condensation of protected oligonucleotide blocks.
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