Synthetic Communications p. 2815 - 2821 (2010)
Update date:2022-08-11
Topics:
Luo, Zheng
Yang, Hai-Feng
Chang, Xiao-Wei
Zhang, Dan-Wei
Unnatural polar α-aminoxy acid residue with proteingenous hydroxymethyl side chain, a building block of the peptidomimetic foldamer of -aminoxy peptide, was synthesized starting from natural amino acid L-serine. The starting material, L-serine, undergoes a reaction sequence to produce compound 1 in three steps: (1) the neighboring carboxyl group participates in diazotization/bromination to transform the amino group to a bromo group, (2) the C-terminal carboxyl group is protected, and (3) bromide is SN2-displaced by N-hydroxyl phthalimide to introduce a N-O bond. After several conventional deprotection/coupling reactions, compound 1 is easily transformed to an -aminoxy diamide, which can be widely used in peptidomimetics design.
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