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首页> 外文期刊>Journal of Medicinal Chemistry >Nitrosothiol esters of diclofenac: Synthesis and pharmacological characterization as gastrointestinal-sparing prodrugs
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Nitrosothiol esters of diclofenac: Synthesis and pharmacological characterization as gastrointestinal-sparing prodrugs

机译：双氯芬酸的亚硝基硫醇酯：保留胃肠道的前药的合成和药理学表征

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摘要

Despite its widespread use, diclofenac has gastrointestinal liabilities common to nonsteroidal antiinflammatory drugs (NSAIDs) that might be reduced by concomitant administration of a gastrointestinal cytoprotectant such as nitric oxide (NO). A series of novel diclofenac esters containing a nitrosothiol (-S-NO) moiety as a NO donor functionality has been synthesized and evaluated in vivo for bioavailability, pharmacological activity, and gastric irritation. All S-NO-diclofenac derivatives acted as orally bioavailable prodrugs, producing significant levels of diclofenac in plasma within 15 min after oral administration to mice. At equimolar oral doses, S-NO-diclofenac derivatives (20a-21b) displayed rat antiinflammatory and analgesic activities comparable to those of diclofenac in the carrageenan-induced paw edema test and the mouse phenylbenzoquinone-induced writhing test, respectively. All tested S-NO-diclofenac derivatives (20a-21b) were gastric-sparing in that they elicited markedly fewer stomach lesions as compared to the stomach lesions caused by a high equimolar dose of diclofenac in the rat. Nitrosothiol esters of diclofenac comprise a novel class of NO-donating compounds having therapeutic potential as nonsteroidal antiinflammatory agents with an enhanced gastric safety profile. [References: 43]
机译：尽管其广泛使用，双氯芬酸仍具有非甾体抗炎药（NSAIDs）常见的胃肠道疾病，可通过同时服用胃肠道细胞保护剂（如一氧化氮（NO））来减轻。合成了一系列含有亚硝基硫醇（-S-NO）部分作为NO供体官能团的新型双氯芬酸酯，并在体内对其生物利用度，药理活性和胃刺激性进行了评估。所有S-NO-双氯芬酸衍生物均作为口服生物可利用的前药，对小鼠口服后15分钟内在血浆中产生大量的双氯芬酸。在等摩尔口服剂量下，S-NO-双氯芬酸衍生物（20a-21b）在角叉菜胶诱发的爪水肿试验和小鼠苯基苯醌诱发的扭体试验中显示出与双氯芬酸相当的大鼠抗炎和镇痛活性。所有测试的S-NO-双氯芬酸衍生物（20a-21b）都是保胃的，与大鼠中等摩尔剂量的双氯芬酸引起的胃损害相比，它们引起的胃损害明显更少。双氯芬酸的亚硝基硫醇酯包含一类新型的NO给予化合物，具有作为非甾体类抗炎药的治疗潜力，具有增强的胃安全性。 [参考：43]

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