Residue-based program of a β-peptoid twisted strand shape a cyclopentane constraint

• Published in: Organic & biomolecular chemistry 2022-09, Vol.2 (35), p.6994-7
• Main Authors: Kim, Jungyeon, Kobayashi, Hiroka, Yokomine, Marin, Shiratori, Yota, Ueda, Takumi, Takeuchi, Koh, Umezawa, Koji, Kuroda, Daisuke, Tsumoto, Kouhei, Morimoto, Jumpei, Sando, Shinsuke
• Format: Article
• ISSN: 1477-0520; 1477-0539
• DOI: 10.1039/d2ob01300b

N -Substituted peptides, such as peptoids and β-peptoids, have been reported to have unique structures with diverse functions, like catalysis and manipulation of biomolecular functions. Recently, the preorganization of monomer shape by restricting bond rotations about all backbone dihedral angles has been demonstrated to be useful for de novo design of peptoid structures. Such design strategies are hitherto unexplored for β-peptoids; to date, no preorganized β-peptoid monomers have been reported. Here, we report the first design strategy for β-peptoids, in which all four backbone dihedral angles ( ω , , , ψ ) are rotationally restricted on a per-residue basis. The introduction of a cyclopentane constraint realized the preorganized monomer structure and led to a β-peptoid with a stable twisted strand shape. The first design strategy for a preorganized β-peptoid monomer is described. A cyclopentane constraint realized the preorganized monomer and led to a β-peptoid with a stable twisted strand shape.