Synthesis and characterization of selenium(I/II) and tellurium(IV) derivatives of amino acids
作者:Puspendra Singh、Harkesh B. Singh、Ray J. Butcher
DOI:10.1016/j.jorganchem.2018.08.028
日期:2018.12
The direct reaction between Te metal and methyl 2-(2-bromoacetamido)propanoate (27) at room temperature, yields the first example of organotellurium(IV) derivative (MeOC(O)CH(Me)NHCOCH2)2TeBr2 (31). Similarly, reaction of Te with methyl 2-(2-bromoacetamido)acetate (26) and methyl 2-(2-bromoacetamido)-3-phenylpropanoate (28) in presence of NaI in acetone gives MeOC(O)CH2NHCOCH2I (29), MeOC(O)CH(R)NHCOCH2)2TeI2
Efficient Synthesis of Modular Amino Acid Derivatives Containing Selenium with Pronounced GPx-Like Activity
作者:Eduardo E. Alberto、Letiére C. Soares、Jéssie H. Sudati、Antonio C. A. Borges、João B. T. Rocha、Antonio L. Braga
DOI:10.1002/ejoc.200900485
日期:2009.9
New chiral selenide- and diselenide aminoacidderivatives have been synthesized. By a simple and efficient two-step route, these new compounds were obtained from inexpensive and commercially available L-amino acids. The products, with a highly modular character, were obtained in good to excellent yields. Selected examples were also efficiently used as GPx mimics, catalyzing the reduction of H2O2 to