One-Pot Conversion of Proline Derivatives into Iodinated Iminosugar-Based Nucleosides, Useful Precursors of Highly Functionalized Nucleoside Analogues
作者:Alicia Boto、Dácil Hernández、Rosendo Hernández
DOI:10.1002/ejoc.201000997
日期:2010.12
tion-β-iodination to the addition of nitrogen bases. The iodo group is introduced into the previously unfunctionalized 3-position. The resultant β-iodo derivatives are usefulprecursors of highly functionalized nucleoside analogues.
One-Pot Synthesis of Azanucleosides from Proline Derivatives - Stereoselectivity in Sequential Processes
作者:Alicia Boto、Dácil Hernández、Rosendo Hernández
DOI:10.1002/ejoc.201000360
日期:——
Common amino acid derivatives can be transformed in one-step fashion into N-azanucleosides. The method is a sequential process initiated by a domino radical decarboxylation/ oxidation reaction; an acyliminium ion is formed as an intermediate and can be trapped by nitrogen bases (purines, pyrimidines, and benzotriazole). The mildness of the reaction conditions and the good yields obtained make this