Antispasmodic Activity of Xanthoxyline Derivatives: Structure–Activity Relationships
作者:Valdir Cechinel Filho、Obdúlio Gomes Miguel、Ricardo José Nunes、João Batista Calixto、Rosendo Augusto Yunes
DOI:10.1002/jps.2600840416
日期:1995.4
styrene groups, on the basis of the similarity with papaverine, improves the antispasmodic action of the xanthoxyline derivates. Our results suggest that the methoxyl and carbonyl groups are critical structural points for the antispasmodic activity of xanthoxyline derivatives. The hydroxyl group improves antispasmodic activity, but is not fundamental to its manifestation.
在体外评估了几种黄嘌呤氧基衍生物对乙酰胆碱诱导的豚鼠回肠收缩的抗痉挛活性。具有两个甲氧基的苯乙酮,主要在3,4位,表现出有效的解痉活性。通过引入苯甲酰基,乙酰基或甲苯磺酰基对黄嘌呤氧基中的羟基进行改性可制得无活性的化合物,而引入苄基或对甲氧基苄基则提供的化合物的强度是黄嘌呤氧基的四至八倍。形成鲜明对比的是,甲基的引入产生了引起收缩活性的化合物。黄嘌呤氧基的羰基的修饰导致不活泼的化合物,而黄嘌呤氧基与苯甲醛的缩合产生的粉笔酮比黄嘌呤氧基的效力高约五倍。基于与罂粟碱的相似性,引入苄基和苯乙烯基团改善了黄嘌呤氧基衍生物的解痉作用。我们的结果表明,甲氧基和羰基是黄嘌呤氧基衍生物抗痉挛活性的关键结构点。羟基可改善解痉活性,但不是其表现的基础。