A green protocol for peptide bond formation in WEB
作者:Manashjyoti Konwar、Abdul Aziz Ali、Diganta Sarma
DOI:10.1016/j.tetlet.2016.04.041
日期:2016.5
A simple, efficient, and environmentally friendly approach has been developed for the synthesis of peptides in aqueous medium. In this work, peptides are easily synthesized in water extract of banana (WEB)/ethylene glycol and without using external base under mild condition.
Asymmetric Induction during the Aminolysis of 5(4<i>H</i>)-Oxazolones from<i>N</i>-Benzoyl Amino Acids; Almost Specific Formation of One Epimer in the Reaction of the Oxazolone from<i>N</i>-Benzoyl-DL-<i>t</i>-leucine with Methyl L-Prolinate
Asymmetric induction during the aminolysis of 5(4H)-oxazolonesfrom N-benzoyl amino acids was investigated using a series of amino acid esters as amine nucleophiles. The reaction of the oxazolone from N-benzoyl-DL-t-Meucine with methyl L-prolinate was found to produce the diastereomeric DL isomer, almost specifically, under appropriate conditions.