NH–π and CH–π interactions, due to their weak character, are not easily identified in solution. We report a group of isolable shortpeptides with stable folds, in which NH–π and CH–π main chain–side chain interactions can be detected in solution by means of NMR and ATR-IR spectroscopy.
Generation of shortpeptides with a single β-strand structure in solution is difficult. Herein, we design a new class of single β-strand peptidic mimics that are stable without self-aggregation in protic and non-protic solvents. Introduction of one present β-strand mimic can induce and propagate the β-strand structure for at least a penta-peptide sequence.
Synthesis of a new enantiomerically pure constrained homoserine
作者:Alberto Avenoza、Carlos Cativiela、Miguel A. Fernández-Recio、Jesús M. Peregrina
DOI:10.1016/0957-4166(96)00067-5
日期:1996.3
The use of the Diels-Alder reaction between 1,3-butadiene and chiral 2-acetamidoacrylates as the key step followed by stereocontrolled transformations allows the synthesis of (1S, 3R)-1-amino-3-hydroxycyclohexanecarboxylic acid, a new type of constrained homoserine, with an excellent overall yield. (C) 1996 Elsevier Science Ltd