Novel Phenoxyalkylamine Derivatives. VII. Synthesis and Pharmacological Activities of 2-Alkoxy-5-((phenoxyalkylamino)alkyl)benzenesulfonamide Derivatives.
作者:Shunichiro SAKURAI、Kazuya MITANI、Shigeki HASHIMOTO、Koji MORIKAWA、Shingo YASUDA、Eiichi KOSHINAKA、Hideo KATO、Yasuo ITO
DOI:10.1248/cpb.40.1443
日期:——
To find a novel α-blocker with high α-blocking selectivity against dopamine D2-receptor affinity, we performed structural modification of the alkylene chains and the substituents on two benzene rings of 2-alkoxy-5-[(phenoxyalkylamino)alkyl]benzenesulfonamide derivatives. The modification of the alkylene chain between the amino moiety in the center of the molecule and the benzene ring (ring A) was found to be the most significant. 5-[2-[[2-(5-Fluoro-2-methoxyphenoxy)ethyl]amino]propyl]-2-methoxybenzenesulfonamide (II-4), which possesses 1-methylethyl as the alkylene chain, exhibited high α-blocking selectivity as well as potent α-blocking activity.
为了找到一种对多巴胺D2受体亲和力具有高选择性的新的α-拮抗剂,我们对2-烷氧基-5-[(苯氧烷基氨基)烷基]苯磺酰胺衍生物的烷基链及两个苯环上的取代基进行了结构改造。发现位于分子中心的氨基部分与苯环(环A)之间的烷基链的改造是最显著的。具备1-甲基乙基作为烷基链的5-[2-[[2-(5-氟-2-甲氧基苯氧基)乙基]氨基]丙基]-2-甲氧基苯磺酰胺(II-4)表现出高α-拮抗选择性以及强效的α-拮抗活性。