Solvent-free, microwave assisted 1,3-cycloaddition of nitrones with vinyl nucleobases for the synthesis of N,O-nucleosides
作者:Olga Bortolini、Maurizio D'Agostino、Antonio De Nino、Loredana Maiuolo、Monica Nardi、Giovanni Sindona
DOI:10.1016/j.tet.2008.06.074
日期:2008.8
A number of 4′-aza-2′,3′-dideoxy nucleosides have been synthesized in good yields and short reaction times by straightforward microwave assisted 1,3-cycloaddition of vinyl nucleobases with nitrones, in the absence of solvent. The vinyl nucleobases are used, for the first time, in their unprotected form.
在不存在溶剂的情况下,通过直接微波辅助将乙烯基核碱基与硝酮进行微波辅助的1,3-环加成反应,已以良好的收率和较短的反应时间合成了许多4'-aza-2',3'-二脱氧核苷。乙烯基核碱基首次以未保护形式使用。