Synthesis of peptide alkaloids. 5. New method for synthesis of ansa peptides. Amino acids and peptides. 34

…, A Lieberknecht, H Griesser, J Talbiersky

Index: Schmidt, Ulrich; Lieberknecht, Albrecht; Griesser, Helmut; Talbiersky, Jorg Journal of Organic Chemistry, 1982 , vol. 47, # 17 p. 3261 - 3264

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Citation Number: 66

Abstract

Reports on the isolation and structure elucidation of about 100 cyclopeptide alkaloids3 have appeared during the last 15 years. These compounds typically contain a para or meta ansa bridge consisting of an enamine function and dipeptide of a@-hydroxy amino acid. This structural characteristic is illustrated by zizyphine G (1) or A (2),