Pyrrolizidine Esters and Amides as 5-HT<sub>4</sub> Receptor Agonists and Antagonists
作者:Daniel P. Becker、Daniel L. Flynn、Alan E. Moormann、Roger Nosal、Clara I. Villamil、Richard Loeffler、Gary W. Gullikson、Chafiq Moummi、Dai-C. Yang
DOI:10.1021/jm0509501
日期:2006.2.1
were 5-HT(4) receptor antagonists, including imidazopyridine amide 12h (SC-53606), which is a potent and selective 5-HT(4) receptor antagonist with a pA(2) value of 8.13 in the rat TMM assay. N-Methyl indole ester 13d was identified as a potent 5-HT(4) antagonist with a pA(2) value of 8.93. High selectivity was observed for these pyrrolizidine derivatives versus other monoamine receptors, including 5-HT(1)
制备了一系列吡咯嗪核苷酯,酰胺和脲,并在大鼠上皮肌膜(TMM)分析中测试了5-HT(4)和5-HT(3)受体结合,5-HT(4)受体激动作用,在Bezold-Jarisch反射测定中对5-HT(3)受体介导的功能拮抗作用。鉴定出几种对5-HT(4)受体具有高亲和力的吡咯烷嗪衍生物,包括苯甲酰胺12a(SC-53116),这是一种有效且选择性的5-HT(4)部分激动剂,在促进窦性收缩方面具有功效,并在促进中具有活性。犬模型中的胃排空。还发现了5-HT(4)受体拮抗剂,包括咪唑并吡啶酰胺12h(SC-53606),这是一种有效且选择性的5-HT(4)受体拮抗剂,在大鼠TMM分析中的pA(2)值为8.13。 。N-甲基吲哚酯13d被确定为有效的5-HT(4)拮抗剂,pA(2)值为8.93。与其他单胺受体,包括5-HT(1),5-HT(2),D(1),D(2),α(1),α(2)和β相比,这些吡咯烷啶衍生物具有很高的选择性受体。