Her S, Kluger R. Biomimetic protecting-group-free 2', 3'-selective aminoacylation of nucleosides and nucleotides.
Org Biomol Chem 2010;
9:676-8. [PMID:
21132175 DOI:
10.1039/c0ob00795a]
[Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Aminoacyl phosphate monoesters can be prepared free of an amino-protecting group and used directly in lanthanum-promoted selective monoacylation of either the 2' or 3'-hydroxyl of nucleosides and nucleotides. For example, phenylalanyl ethyl phosphate rapidly forms esters with either of the 2' or 3'-hydroxyls of ribonucleosides and nucleotides in the presence of lanthanum ions in aqueous buffer. Oligomerization of the aminoacyl phosphate is much slower than ester formation and is not a competitive process. Competing hydrolysis of the reagent is slow. By extension, this route should provide a simplified general route to synthetically aminoacylated derivatives of tRNA.
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