A facile one-pot synthesis of Nα-Z/Boc-protected S-linked 1,3,4-oxadiazole tethered peptidomimetics
作者:Vommina V. Sureshbabu、B. Vasantha、G. Nagendra
DOI:10.1016/j.tetlet.2011.12.093
日期:2012.3
A new class of S-linked 1,3,4-oxadiazole-tethered N-alpha-protected peptidomimetics is designed and synthesized by a reaction of N-alpha-Z/Boc-protected 1,3,4-oxadiazole-2-thiol with alpha-bromo ester derived from amino acid. The protocol has also been employed for the synthesis of glycosylated amino acids and N,N'-orthogonally protected dipeptidomimetics bearing S-linked 1,3,4-oxadiazole mimetics as well. The intermediate 5-alkyl amino-1,3,4-oxadiazole-2-thiols have been isolated as stable compounds. Further, the chain extension at both N- and C-termini of N-protected S-linked 1,3,4-oxadiazole tethered dipeptidomimetics was also demonstrated. (C) 2012 Elsevier Ltd. All rights reserved.