Collect. Czech. Chem. Commun. 1966, 31, 4296-4311

Amino acids and peptides. LXIV. Infrared spectra of substituted 2,5-piperazinediones and the detection of cis-peptide bonds in diastereomeric cyclohexapeptides

K. Bláha, J. Smolíková and A. Vítek

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