Intramolecular hydrogen bonding allows simple enaminones to structurally mimic the i, i+4, and i+7 residues of an α-helix
摘要:
An intramolecularly hydrogen bonded enaminone scaffold was designed and synthesized in order to mimic the i, i + 4, and i + 7 residues of an alpha-helix. The resonance stabilized vinylogous amide group serves as an aromatic ring isostere and allows the positioning and angular projection of the R-groups in a manner similar to an alpha-helix. (c) 2006 Elsevier Ltd. All rights reserved.