Acrylamide derivatives as antiallergic agents. I. Synthesis and structure-activity relationships of N-((4-substituted 1-piperazinyl)alkyl)-3-(aryl and heteroaryl)acrylamides.
作者:Yoshinori NISHIKAWA、Tokuhiko SHINDO、Katsumi ISHI、Hideo NAKAMURA、Tatsuya KON、Hitoshi UNO
DOI:10.1248/cpb.37.100
日期:——
A new series of acrylamide derivatives (7-10) were synthesized. Antiallergic activity of these compounds was evaluated and their structure-activity relationships were examined. Compounds 10d, N[4-(4-diphenylmethyl-1-piperazinyl)buthyl]3-(3-pyridyl)acrylamide, showed antiallergic activity equivalent or superior to that of ketotifen in the rat passive cutaneous anaphylaxis (PCA) test by oral administration. Compound 10d, unlike ketotifen, had more potent in vitro 5-lipoxygenase inhibitory activity than caffeic acid, whereas its in vitro antihistamine activity was weaker than that of ketotifen. In addition, its inhibitory activity against histamine release from rat mast cells was approximately two-thirds as potent as that of disodium cromoglycate (DSCG). Compound 10d is a promising agent for treating a variety of allergic diseases.
一系列新的丙烯酰胺衍生物(7-10)被合成。对这些化合物的抗过敏活性进行了评估,并考察了它们的结构-活性关系。化合物10d,即N[4-(4-二苯甲基-1-哌嗪基)丁基]3-(3-吡啶基)丙烯酰胺,在口服给药的大鼠被动皮肤过敏反应(PCA)测试中显示出与酮替芬相当或更优越的抗过敏活性。与酮替芬不同,10d在体外对5-脂氧合酶的抑制活性比咖啡酸更强,而其体外抗组胺活性则弱于酮替芬。此外,它对大鼠肥大细胞释放组胺的抑制活性约为色甘酸二钠(DSCG)的三分之二。化合物10d是一种有前途的多种过敏性疾病治疗药物。