Lee Yeon Sun, Agnes Richard S, Davis Peg, Ma Shou-wu, Badghisi Hamid, Lai Josephine, Porreca Frank, Hruby Victor J
Department of Chemistry, University of Arizona, Tucson, Arizona 85721, USA.
J Med Chem. 2007 Jan 11;50(1):165-8. doi: 10.1021/jm061268p.
Partially modified retro-inverso, retro, and inverso isomers of hydrazide linked bifunctional peptides were designed, synthesized, and evaluated for bioactivities at delta/mu opioid receptors and CCK-1/CCK-2 receptors. All modifications of the CCK pharmacophore moiety affected bioactivities for the CCK-1 and CCK-2 receptors (up to 180-fold increase in the binding affinity with higher selectivity) and for the delta and mu opioid receptors. The results indicate that the opioid and CCK pharmacophores in one molecule interact with each other to induce topographical changes for both pharmacophores.
设计、合成并评估了酰肼连接双功能肽的部分修饰的反向异构体、反向异构体和顺反异构体在δ/μ阿片受体和CCK-1/CCK-2受体上的生物活性。CCK药效基团部分的所有修饰均影响CCK-1和CCK-2受体的生物活性(结合亲和力提高达180倍,选择性更高)以及δ和μ阿片受体的生物活性。结果表明,一个分子中的阿片类药物和CCK药效基团相互作用,导致两个药效基团的构象发生变化。