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.
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.
An Expedient Route to the Tetrazole Analogues of α-Amino Acids
作者:Zachary P. Demko、K. Barry Sharpless
DOI:10.1021/ol020096x
日期:2002.7.1
[GRAPHIC]Convenient conditions are described for the transformation of alpha-aminonitriles to the tetrazole analogues of alpha-amino acids. Refluxing the starting material in water/2-propanol at 80 degreesC with sodium azide and catalytic zinc bromide affords the tetrazole product in yields generally exceeding 90%.
Liberek,B. et al., Roczniki Chemii, 1965, vol. 39, p. 369 - 374