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

U Schmidt, A Lieberknecht, H Griesser…

Index: Journal of Organic Chemistry, , vol. 47, # 17 p. 3261 - 3264

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Citation Number: 66

Abstract

... J. Org ... Chem., Vol. ... The combined organic layers were dried, filtered, evaporated, and pumped at lo-, mm for 2 h to yield N- [3- [ [4- [p- [(benzyloxycarbonyl)amino]ethyl]phenyl]oxy]- propanoyl]-~-proline (9): 6.2 g (70%); [.D -32.6O (c 0.8, ethanol); 'H NMR (CDCl,, Me4Si) 6 2.32 ( ...