Antivertigo agents. IV. Synthesis and antivertigo activity of 6-(.OMEGA.-(4-aryl-1-piperazinyl)alkyl)-5,6,7,8-tetrahydro-1,6-naphthyridines.
作者:AKIRA SHIOZAWA、YUHICHIRO ICHIKAWA、CHIKARA KOMURO、MICHIO ISHIKAWA、YASUHIKO FURUTA、SHUJI KURASHIGE、HIROSHI MIYAZAKI、HIROSHI YAMANAKA、TAKAO SAKAMOTO
DOI:10.1248/cpb.32.3981
日期:——
A series of novel 6-[ω-(4-aryl-1-piperazinyl) alkyl]-5, 6, 7, 8-tetrahydro-1, 6-naphthyridines was synthesized and evaluated for antivertigo activity by testing their ability to inhibit spontaneous nystagmus in cats. Structure-activity relationships are discussed. Many of the compounds having the 4-(2-alkoxyphenyl) piperazine group as the 4-arylpiperazine moiety showed more potent antivertigo activity than diphenidol. Among them, 2-2-[4-(2-ethoxyphenyl)-1-piperazinyl] ethyl}-1, 2, 3, 4, 6, 7, 8, 9-octahydrobenzo [b] [1, 6] naphthyridine (NK 422, 41) was selected as a promising antivertigo agent. NK 422 also exhibited a more potent inhibitory effect on apomorphine-induced vomiting in dogs than diphenidol.
合成了一系列新型的6-[ω-(4-芳基-1-哌嗪基)烷基]-5, 6, 7, 8-四氢-1, 6-萘啶,并通过测试其抑制猫的自发性眼震的能力来评估其抗眩晕活性。讨论了结构-活性关系。许多具有4-(2-烷氧基芳基)哌嗪基作为4-芳基哌嗪部分的化合物显示出比二苯醇更强的抗眩晕活性。其中,2-2-[4-(2-乙氧基芳基)-1-哌嗪基]乙基}-1, 2, 3, 4, 6, 7, 8, 9-八氢苯并[b][1, 6]萘啶(NK 422, 41)被选为有前途的抗眩晕剂。NK 422在犬源性呕吐的抑制效果上也表现出比二苯醇更强的抑制作用。