Cyclic oligopeptides conformational analysis

The final chapter, by Itokawa, Takeya, Hitotsuyanagi, and Morita, reviews the various macrocyclic peptide alkaloids isolated from plants. In addition to a general overview of the many new peptide and amide alkaloids that have been isolated recently from a diverse range of plant families, this review places particular emphasis on the structure-activity relationships, the conformational analysis, and the antitumor activity of the RA series of cyclic oligopeptides from Rubia spp. 

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