Conformational investigations of two diastereoisomers of the tripeptide N-Z-N-Bz-Lys-Ala-Sar-OBzl. 2. Infrared and Raman studies and normal modes analysis

Abstract

SUMMARY The spatial conformations of two diastereoisomers of the tripeptide N-Z-N-Bz-Lys-Ala-Sar-OBzl have been investigated by vibrational spectroscopies. It has been shown that the conformers contain a permanent hydrogenbonded C7-like structure and that another hydrogen-bonded ring can exist as a C10 or a C11-like structure. ©1997 by John Wiley & Sons, Ltd.