Synthesis and antiallergic activity of N-(4-(4-diphenylmethyl-1-piperazinyl)butyl)-1,4-dihydro-4-oxopyridine-3-carboxamides.
作者:Yoshinori NISHIKAWA、Tokuhiko SHINDO、Katsumi ISHII、Hideo NAKAMURA、Tatsuya KON、Hitoshi UNO、Jun-ichi MATSUMOTO
DOI:10.1248/cpb.37.1256
日期:——
A new series of oxopyridinecarboxamide derivatives 3a-g and 5a were synthesized and evaluated for their antiallergic activity. 1, 4-Dihydro-7-methyl-4-oxo-1, 8-naphthyridine-3-carboxamides 3a and 5a exhibited potent antiallergic activity (inhibitory rates of 80.7 and 88.3%, respectively, at 20mg/kg, p.o.) in the rat passive cutaneous anaphylaxis (PCA) test and also exhibited much more potent in vitro inhibitory activity than caffeic acid against the enzyme 5-lipoxygenase (5-LO). Their in vitro antihistamine activity, however, was weaker than that of ketotifen. Compounds 3a and 5a are viewed as promising candidates for antiallergic agents.
合成了一系列新的氧吡啶甲酰胺衍生物 3a-g 和 5a,并对其抗过敏活性进行了评估。在大鼠被动皮肤过敏性休克(PCA)试验中,1, 4-二氢-7-甲基-4-氧代-1, 8-萘啶-3-甲酰胺 3a 和 5a 表现出很强的抗过敏活性(在 20 毫克/千克剂量下,抑制率分别为 80.7% 和 88.3%),在体外对 5-脂氧合酶(5-LO)的抑制活性也比咖啡酸强得多。不过,它们的体外抗组胺活性弱于酮替芬。化合物 3a 和 5a 被认为是很有希望的候选抗过敏剂。