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First Observation of Left-Handed Helical Conformation in a Dehydro Peptide Containing Two l -Val Residues. Crystal and Solution Structure of Boc- l -Val-ΔPhe-ΔPhe-ΔPhe- l -Val-OMe †,⊥

✍ Scribed by Jain, R. M.; Rajashankar, K. R.; Ramakumar, S.; Chauhan, V. S.

Book ID
126082548
Publisher
American Chemical Society
Year
1997
Tongue
English
Weight
238 KB
Volume
119
Category
Article
ISSN
0002-7863

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## Abstract The structures of two dehydropentapeptides, Boc–Pro–ΔPhe–Val–ΔPhe–Ala–OMe (**I**) and Boc–Pro–ΔPhe–Gly–ΔPhe–Ala–OMe (**II**) (Boc: __t__‐butoxycarbonyl), have been determined by nuclear magnetic resonance (NMR), circular dichroism (CD), and X‐ray crystallographic studies. The peptide **