Stable triazolylphosphonate analogues of phosphohistidine
摘要:
Histidine-phosphorylated proteins and the corresponding kinases are important components of bacterial and eukaryotic cell-signalling pathways, and are therefore potential drug targets. The study of these biomolecules has been hampered by the lability of the phosphoramidate functional group in the phosphohistidines and the lack of generic antibodies. Herein, the design and concise synthesis of stable triazolylphosphonate analogues of N1- and N3-phosphohistidine, and derivatives suitable for bioconjugation, are described.
Stable triazolylphosphonate analogues of phosphohistidine
摘要:
Histidine-phosphorylated proteins and the corresponding kinases are important components of bacterial and eukaryotic cell-signalling pathways, and are therefore potential drug targets. The study of these biomolecules has been hampered by the lability of the phosphoramidate functional group in the phosphohistidines and the lack of generic antibodies. Herein, the design and concise synthesis of stable triazolylphosphonate analogues of N1- and N3-phosphohistidine, and derivatives suitable for bioconjugation, are described.
(S)-(-)-N-acetyl-2-methoxycarbonylaziridine 1 undergoes easy ring-opening by Bronsted acids or nucleophiles in the presence of a Lewis acid catalyst. The regioselectivity is not always exclusive, affording optically active alpha- and beta-aminoacids.
Stereochemistry of nucleophilic ring-opening reactions of optically active N-acetyl-2-methoxycarbonylaziridine
作者:Paolo Davoli、Arrigo Forni、Irene Moretti、Fabio Prati
DOI:10.1016/0957-4166(95)00261-m
日期:1995.8
The S(N)2-like mechanism of the nucleophilic attack of sodium azide on (S)-(-)-N-acetyl-2-methoxycarbonylaziridine was verified through the chemical correlation of the ring-opening products with (S)-(+)- or (R)-(-)-2,3-diaminopropanoic acid monohydrochloride.