Synthesis and Analgesic Activity of 3,7-dimethylpurine-2,6-dion-1-yl Derivatives of Acetic and Butanoic Acid
作者:Mal.gorzata Zygmunt、Pawe.l Zmudzki、Graz.yna Chl.on.-Rzepa、Jacek Sapa、Maciej Pawl.owski
DOI:10.2174/1570180811666140718162449
日期:2014.10.1
Hydrazones are a group of compounds possessing diversified biological activity, anti-inflammatory and analgesic
activities. There are also known xanthine derivatives possessing such activity. The aim of our study was to investigate
if introduction of hydrazone moiety to 3,7-dimethylpurine-2,6-dion-1-yl acetic and butanoic acid derivatives would enhance
the analgesic activity. The designed series of compounds were synthesized in a multi-step procedure. Their pharmacological
activity was investigated in the writhing syndrome test. Based on the results the structure-activity relationship
was discussed. From the synthesized group of twenty compounds, nineteen were tested in vivo. The analgesic activity of
most compounds, except for compound 4, was higher than for acetylsalicylic acid in the writhing syndrome test. Our
study showed that the introduction of hydrazone moiety generally enhances analgesic activity of xanthine derivatives,
compared to derivatives with free carboxylic group, ester, benzylamide and hydrazide moieties. The presence of hydroxyl
moiety or substituent with high electron density does not seem to be necessary for the activity of hydrazone derivatives.
肼基化合物是一类具有多样化生物活性、抗炎和镇痛活性的化合物。已知也存在具有这种活性的黄嘌呤衍生物。我们研究的目的是调查将肼基引入3,7-二甲基嘌呤-2,6-二酮-1-基醋酸和丁酸衍生物是否会增强其镇痛活性。设计的一系列化合物通过多步程序合成。它们的药理活性在扭体综合症测试中进行了研究。根据结果讨论了结构-活性关系。在合成的二十种化合物中,有十九种进行了体内测试。除了化合物4外,大多数化合物的镇痛活性在扭体综合症测试中均高于乙酰水杨酸。我们的研究表明,与具有自由羧基、酯、苄胺和肼基的衍生物相比,肼基的引入普遍增强了黄嘌呤衍生物的镇痛活性。氢氧基或高电子密度取代基的存在似乎对肼基衍生物的活性并不是必要条件。