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. Author manuscript; available in PMC: 2014 Dec 20.
Published in final edited form as: J Org Chem. 2013 Dec 5;78(24):12351–12361. doi: 10.1021/jo401501g

Figure 1.

Figure 1

(a) Helix-forming oligomers of γ-residues studied by Hanessian1b,d and Seebach.1cfh (b) Constrained γ-amino acids that promote formation of helices that contain C=O(i)--H-N(i+3) hydrogen bonds.3 (c) The γ-amino acid AMCP.