@article{oai:nagasaki-u.repo.nii.ac.jp:00001087,
 author = {Koba, Yurie and Ueda, Atsushi and Oba, Makoto and Doi, Mitsunobu and Demizu, Yosuke and Kurihara, Masaaki and Tanaka, Masakazu},
 issue = {26},
 journal = {ChemistrySelect},
 month = {Sep},
 note = {l?Leu-based heteropeptides having (R)- or (S)-chiral five-membered carbocyclic ring amino acids (Ac5c3EG) with an ethylene acetal moiety were prepared. A conformational analysis using FT-IR absorption, 1H NMR, and circular dichroism (CD) spectra revealed that l?Leu-based hexapeptides and nonapeptides having (R)- or (S)-Ac5c3EG formed right-handed (P) helical structures in solution. An X-ray crystallographic analysis of nonapeptides 5 a and 5 b showed similar right-handed (P) α-helical structures, without an intramolecular hydrogen bond of the peptide N?H????O? (acetal) type., ChemistrySelect, 2(26), pp.8108-8114; 2017},
 pages = {8108--8114},
 title = {Helical l-Leu-Based Peptides Having Chiral Five-Membered Carbocyclic Ring Amino Acids with an Ethylene Acetal Moiety},
 volume = {2},
 year = {2017}
}