One-pot synthesis of orthogonally protected dipeptide selenazoles employing Nα-amino selenocarboxamides and α-bromomethyl ketones
摘要:
A simple and efficient protocol for the synthesis of selenazole containing dipeptidomimetics using N-alpha-amino selenocarboxamides and alpha-bromomethyl ketones is described. All the compounds made were isolated in good yields and fully characterized. (C) 2014 Elsevier Ltd. All rights reserved.
Synthesis of tetrazole analogues of amino acids using Fmoc chemistry: isolation of amino free tetrazoles and their incorporation into peptides
作者:Vommina V. Sureshbabu、Rao Venkataramanarao、Shankar A. Naik、G. Chennakrishnareddy
DOI:10.1016/j.tetlet.2007.07.129
日期:2007.9
An efficient synthesis of tetrazole analogues of aminoacids starting from Nα-Fmoc aminoacid in a three-step protocol is reported. The free amino tetrazoles were obtained in good yields and with excellent purity after removal of the Fmoc group. The synthesis of analogues of aspartic and glutamic acids in which the 5-tetrazolyl moiety is inserted at the β/γ carboxyl group starting from Fmoc-Asn and
A simple preparation of N-protected chiral α-aminonitriles from N-protected α-amino acid amides
作者:Philippe Maetz、Marc Rodriguez
DOI:10.1016/s0040-4039(97)00895-2
日期:1997.6
N-protected α-amino-acid amides are dehydrated to N-protected α-aminonitriles in good yields and with excellent purities by reaction of the corresponding primary amides with cyanuric chloride in DMF.