Discovery of novel 4‐methylpiperidinyl benzamide derivatives as
<scp>
5‐HT
<sub>4</sub>
</scp>
receptor agonist for the treatment of gastrointestinal disorders
作者:Sunho Choi、Min Jung Lee、Kwang‐Hyun Ahn
DOI:10.1002/bkcs.12667
日期:——
Novel 4-methypiperidinyl benzamide derivatives were synthesized and evaluated for in vitro and in vivo prokinetic activities. In these derivatives, 3-methoxypiperidine moiety of norcisapride, a pharmacophore of cisapride and DA-6650, were replaced to 4-methylpiperidinyl moiety without chiral center. Among these derivatives, Compound 28b had a potent 5-HT4 receptor-binding affinity (IC50 = 0.067 μM)
合成了新型 4-甲基哌啶基苯甲酰胺衍生物,并评估了体外和体内的促运动活性。在这些衍生物中,去甲西沙必利的 3-甲氧基哌啶部分、西沙必利的药效团和 DA-6650 被替换为没有手性中心的 4-甲基哌啶基部分。在这些衍生物中,化合物28b具有强效的 5-HT 4受体结合亲和力 (IC 50 = 0.067 μM),并且在不抑制 CYP3A4 (IC 50 = 7.272 μM) 和阻断人类 ether-à-go-go-related 的情况下提高了安全性基因 (hERG) 通道 (IC 50 > 10 μM)。体内大鼠模型,化合物28b与对照组相比,胃排空率提高 (68.2%),排便重量增加两倍以上。此外,它在刺激大鼠模型中显示出内脏超敏反应的缓解作用。因此,化合物28b被选为临床前候选药物,作为促动力剂,具有良好的安全性,可用于治疗胃肠道疾病。