Novel difluoromethylated 1-(phenylsulfonyl)-4-(piperazin-1-yl)-1H-indole derivatives as potent 5-HT6 receptor antagonist with AMDE-improving properties: Design, synthesis, and biological evaluation
作者:Chao Yi、Kangzhi Chen、Haiping Liang、Zusheng Wang、Tao Wang、Kai Li、Jiahui Yu、Jiexie Sun、Chuanfei Jin
DOI:10.1016/j.bmc.2022.116950
日期:2022.10
Serotonin type 6 receptor (5-HT6R) has been considered as a particularly promising target for treating cognitive deficits due to the positive effects of its antagonists in a wide range of memory impairment paradigms. In this study, we designed, synthesized, and evaluated a series of 3-(difluoromethyl)-1-(phenylsulfonyl)-4-(piperazin-1-yl)-1H-indole derivatives as potent 5-HT6R antagonists. Structure-activity
6 型血清素受体 (5-HT 6 R) 已被认为是治疗认知缺陷的特别有希望的靶标,因为其拮抗剂在广泛的记忆障碍范式中具有积极作用。在这项研究中,我们设计、合成和评估了一系列 3-(二氟甲基)-1-(苯磺酰基)-4-(哌嗪-1-基)-1 H-吲哚衍生物作为有效的 5-HT 6 R 拮抗剂。构效关系研究导致发现五种化合物(6a、6m、6n、6p和6q )在 5-HT 6 R处具有强结合亲和力。大鼠体内药代动力学研究,6p通过使用二氟甲基取代甲基,AUC (267 ng·h/mL) 和生物利用度 (34.39 %) 比6a (分别为 9.37 ng·h/mL 和 5.95 %) 高 30 倍。此外,6p表现出良好的脑穿透性,C b /C p比约为 6。基于药理特性和有利的药代动力学特性,进一步选择6p来评估初步体内模型中的认知增强特性。研究发现,6p不仅可以防止东莨菪碱诱导的新物体识别测试中的学