首页> 外文期刊>European Journal of Medicinal Chemistry: Chimie Therapeutique >Synthesis and serotonergic activity of variously substituted (3-amido)phenylpiperazine derivatives and benzothiophene-4-piperazine derivatives: novel antagonists for the vascular 5-HT1B receptor.
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Synthesis and serotonergic activity of variously substituted (3-amido)phenylpiperazine derivatives and benzothiophene-4-piperazine derivatives: novel antagonists for the vascular 5-HT1B receptor.

机译:各种取代的(3-氨基)苯基哌嗪衍生物和苯并噻吩-4-哌嗪衍生物的合成和血清素能活性:血管5-HT1B受体的新型拮抗剂。

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摘要

The synthesis and vascular 5-HT(1B) receptor activity of a novel series of substituted 3-amido phenylpiperazine and 4-(4-methyl-1-piperazinyl)-1-benzo[b]thiophene derivatives is described. Modifications to the amido linked sidechains of the 3-amidophenyl-piperazine derivatives and to the 2-sidechain of the 1-benzo[b]thiophene derivatives have been explored. Several compounds were identified which exhibited affinity at the vascular 5-HT(1B) receptor of pK(B) > 7.0. From the 3-amidophenyl-piperazine series, N-(4-(4-chlorophenyl)thiazol-2-yl-3-(4-methyl-1-piperazinyl)benzamide (30) and from the benzo[b]thiophene-4-piperazine series N-(2-ethylphenyl)-4-(4-methyl-1- piperazinyl)-1-benzo[b]thiophene-2-carboxamide (38) were identified as a highly potent, silent (as judged by the inability of angiotensin II to unmask 5-HT(1B) receptor mediated agonist activity in the rabbit femoral artery) and competitive vascular 5-HT(1B) receptor antagonist. The affinity of compounds from these two series of compounds for the vascular 5-HT(1B) receptor is discussed as well as a proposed mode of binding to the receptor pharmacophore.
机译:描述了一系列新的取代的3-酰胺基苯基哌嗪和4-(4-甲基-1-哌嗪基)-1-苯并[b]噻吩衍生物的合成和血管5-HT(1B)受体活性。已经研究了对3-酰胺基苯基-哌嗪衍生物的酰胺基连接的侧链和1-苯并[b]噻吩衍生物的2-侧链的修饰。鉴定出对pK(B)> 7.0的血管5-HT(1B)受体表现出亲和力的几种化合物。由3-氨基苯基-哌嗪系列,N-(4-(4-氯苯基)噻唑-2-基-3-(4-甲基-1-哌嗪基)苯甲酰胺(30)和苯并[b]噻吩-4 -哌嗪系列N-(2-乙基苯基)-4-(4-甲基-1-哌嗪基)-1-苯并[b]噻吩-2-羧酰胺(38)被鉴定为高效,沉默的药物(根据血管紧张素II不能消除5-HT(1B)受体介导的兔股动脉激动剂活性和竞争性血管5-HT(1B)受体拮抗剂的作用。这两个系列化合物对血管5-HT的亲和力讨论了(1B)受体以及与受体药效团结合的提议模式。

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