Absbwct: 2-Diphenylmethylsilylethyl (DPSE) is a new protecting group for internucleotidic bonds in the synthesis of oligodeoqribo nucleotides by the phosphoramidite approach. This group is stable to acidic conditions and can be removed under mild /3$ragmentation conditions using aqueous ammonium hyd
Use of 2-methylsulfonylethyl as a phosphorus protecting group in oligonucleotide synthesis via a phosphite triester approach
โ Scribed by C. Claesen; G.I. Tesser; C.E. Dreef; J.E. Marugg; G.A. van der Marel; J.H. van Boom
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- French
- Weight
- 204 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
2-Methylsulfonylethoxy dichlorophosphine has been converted into the mono-N-morpholino derivative and applied for the preparation of 5'-D,N-protected d-nucleoside-3'-phosphoramidites. The latter intermediates could be used in the presence of 1-hydroxyben~otriazole for the formation of 3'-5'-phosphotriester linkages. The MSE protecting group can be removed selectively and fast under mild basic conditions.
๐ SIMILAR VOLUMES
4-Cyano-2-butenyl (CB) is a new type of protecting group for the intemucleotidic bonds in the synthesis of oligodeoxyribonucleotides by the phosphoramidite approach. This group is stable to acidic conditions and can be removed under mild conditions by a 8-elimination pathway using aqueous ammonium h