Synthesis and Incorporation into Cyclic Peptides of Tolan Amino Acids and Their Hydrogenated Congeners: Construction of an Array of A–B-loop Mimetics of the Cε3 Domain of Human IgE
作者:Daniel A. Offermann、John E. McKendrick、Jimmy J. P. Sejberg、Bingli Mo、Mary D. Holdom、Birgit A. Helm、Robin J. Leatherbarrow、Andrew J. Beavil、Brian J. Sutton、Alan C. Spivey
DOI:10.1021/jo202604q
日期:2012.4.6
for the development of anti asthma therapeutics. Here, we describe the synthesis of an array of conformationally constrained cyclic peptides based on an epitope of the A–B loop within the Cε3 domain of IgE. The peptides contain various tolan (i.e., 1,2-biarylethyne) amino acids and their fully and partially hydrogenated congeners as conformational constraints. Modest antagonist activity (IC50 ∼660 μM)