Benzotriazole-Mediated Synthesis of Aza-peptides: En Route to an Aza-Leuenkephalin Analogue
作者:Nader E. Abo-Dya、Suvendu Biswas、Akash Basak、Ilker Avan、Khalid A. Alamry、Alan R. Katritzky
DOI:10.1021/jo302251e
日期:2013.4.19
with an ester bond 26b, and a hybrid azatripeptide with an ester bond 28. A new protocol for the synthesis of N-Pg-azatripeptides 33a,b and 35a,b, each containing a natural amino acid at the N-terminus, avoids the low coupling rates of the aza-amino acid residue and enables the solution-phase synthesis of an azaphenylalanine analogue of Leu-enkephalin 40.
Simple amphiphilic α-hydrazido acids: Rational design, synthesis, and in vitro bioactivity profile of a novel class of potential antimicrobial compounds
antimicrobial peptides, we optimized a short, cheap and high-yielding synthesis of mono-charged amphiphilic α-hydrazido acid derivatives. The most active derivatives furnished MICs that are among the best values reported in literature for synthetic amphiphilic membranolytic compounds. They exhibited a broad-spectrum in vitro activityagainst a variety of Gram-positive and Gram-negative bacteria, including