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Synthesis of D-altritol nucleosides with a 3'-O-tert-butyldimethylsilyl protecting group. 2004

Michael Abramov, and Arnaud Marchand, and Agnes Calleja-Marchand, and Piet Herdewijn
Laboratory for Medicinal Chemistry, Rega Institute for Medical Research, Leuven, Belgium.

Four D-altritol nucleosides with a 3'-O-tert-butyldimethylsilyl protecting group are synthesized (base moieties are adenine, guanine, thymine and 5-methylcytosine). The nucleosides are obtained by ring opening reaction of 1,5:2,3-dianhydro-4,6-O-benzylidene-D-allitol. Optimal reaction circumstances (NaH, LiH, DBU, phase transfer, microwave irridation) for the introduction of the heterocycles are base-specific. For the introduction of the 3'-O-silyl protecting group, long reaction times and several equivalents of tert-butyldimethylsilyl chloride are needed.

UI MeSH Term Description Entries
D009705 Nucleosides Purine or pyrimidine bases attached to a ribose or deoxyribose. (From King & Stansfield, A Dictionary of Genetics, 4th ed) Nucleoside,Nucleoside Analog,Nucleoside Analogs,Analog, Nucleoside,Analogs, Nucleoside
D012821 Silanes Compounds similar to hydrocarbons in which a tetravalent silicon atom replaces the carbon atom. They are very reactive, ignite in air, and form useful derivatives. Silane
D013402 Sugar Alcohols Polyhydric alcohols having no more than one hydroxy group attached to each carbon atom. They are formed by the reduction of the carbonyl group of a sugar to a hydroxyl group. (From Dorland, 28th ed) Alcohols, Sugar,Alditol,Sugar Alcohol,Alditols,Alcohol, Sugar

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