New 1-Benzyl-4-hydroxypiperidine Derivatives as Non-imidazole Histamine H<sub>3</sub>Receptor Antagonists
作者:Iwona Maslowska-Lipowicz、Marek Figlus、Obbe P. Zuiderveld、Krzysztof Walczynski
DOI:10.1002/ardp.200800070
日期:2008.12
H3 receptor antagonists – the electrically evoked contraction of the guinea‐pig jejunum. The histaminergic H1 antagonism of selected compounds 9b1, 9b2, and 9b4–9b6 was established on the isolated guinea‐pig ileum by conventional methods; the pA2 values were compared with the potency of pyrilamine. The compounds did not show any H1 antagonistic activity (pA2 < 4; for pyrilamine pA2 = 9.53).
已经制备了一系列 1-苄基-4-(3-氨基丙氧基)哌啶和 1-苄基-4-(5-氨基戊氧基)哌啶衍生物。评估了获得的 1-苄基-4-羟基哌啶衍生物对重组人组胺 H3 受体的亲和力,在 HEK 293T 细胞中稳定表达。研究的所有化合物都显示出中等至显着的体外亲和力。该系列中最有效的拮抗剂 9b2 (hH3R, pKi = 7.09)、9b1 (hH3R, pKi = 6.78)、9b5 (hH3R, pKi = 6.99) 和 9b6 (hH3R, pKi = 6.97) 也作为 H3 进行了体外测试受体拮抗剂——豚鼠空肠的电诱发收缩。通过常规方法在离体的豚鼠回肠上建立了所选化合物 9b1、9b2 和 9b4-9b6 的组胺能 H1 拮抗作用;将 pA2 值与吡拉敏的效力进行比较。