Nonpeptide Bradykinin B<sub>2</sub> Receptor Antagonists: Conversion of Rodent-Selective Bradyzide Analogues into Potent, Orally-Active Human Bradykinin B<sub>2</sub> Receptor Antagonists
作者:Edward K. Dziadulewicz、Timothy J. Ritchie、Allan Hallett、Christopher R. Snell、John W. Davies、Roger Wrigglesworth、Andrew R. Dunstan、Graham C. Bloomfield、Gillian S. Drake、Peter McIntyre、Michael C. Brown、Gillian M. Burgess、Wai Lee、Clare Davis、Mohammed Yaqoob、Steve B. Phagoo、Elsa Phillips、Martin N. Perkins、Elizabeth A. Campbell、Andrew J. Davis、Humphrey P. Rang
DOI:10.1021/jm0111088
日期:2002.5.1
[2-[(2-dimethylaminoethyl)methylamino]ethyl]amide (bradyzide; (S)-4), was recently disclosed as a novel, potent, orally active nonpeptide bradykinin (BK) B2 receptor antagonist. The compound inhibited the specific binding of [3H]BK to NG108-15 cell membrane preparations (rodent neuroblastoma-glioma) expressing B2 receptors with a K(i) of 0.5 +/- 0.2 nM. Compound (S)-4 also demonstrated oral efficacy against Freund's
1-(2-硝基苯基)硫代氨基脲(TSC)衍生物,(S)-1- [4-(4-苯甲硫基氨基脲基)-3-硝基苯磺酰基]吡咯烷-2-羧酸[2-[((2-二甲基氨基乙基)甲基氨基]乙]酰胺(布雷迪嗪;(S)-4)最近被公开为一种新型,有效,口服的非肽缓激肽(BK)B2受体拮抗剂。该化合物以0.5 +/- 0.2 nM的K(i)抑制[3H] BK与表达B2受体的NG108-15细胞膜制剂(啮齿类神经母细胞瘤-神经胶质瘤)的特异性结合。化合物(S)-4还证明对大鼠的弗氏完全佐剂(FCA)诱导的机械性痛觉过敏具有口服功效,ED50值为0.84 micromol / kg。在我们优化了从TSC框架预测的终端绑定决定因素之后,我们发现可以用仅15倍的结合亲和力损失((S)-14a)取代潜在的有毒硝基和二价硫部分。但是,发现Bradyzide及其同类物对在Cos-7细胞中表达的克隆的人B2受体的亲和力低得多。迄