Facile Synthesis of Cyclic Tetrapeptides from Nonactivated Peptide Esters on Metal Centers
作者:Katharina Haas、Werner Ponikwar、Heinrich Nöth、Wolfgang Beck
DOI:10.1002/(sici)1521-3773(19980504)37:8<1086::aid-anie1086>3.0.co;2-v
日期:1998.5.4
The cyclization of dipeptide esters of α-, β-, γ-, and δ-amino acids can be achieved by using NiII , PdII , or CuII templates. The structure of one of the complexes (1) obtained, which was determined by X-ray crystallography, reveals that the anions form layers and are linked to water molecules by hydrogen bonds.