Synthesis and anti-inflammatory activity of sulfonamides and carboxylates incorporating trimellitimides: Dual cyclooxygenase/carbonic anhydrase inhibitory actions
摘要:
Trimellitimides 6-21 were prepared and investigated in vivo for anti-inflammatory and ulcerogenic effects and in vitro for cytotoxicity. They were subjected to in vitro cyclooxygenase (COX-1/2) and carbonic anhydrase inhibition protocols. Compounds 6-11 and 18 exhibited anti-inflammatory activities and had median effective doses (ED50) of 34.3-49.8 mg kg(-1) and 63.6-86.6% edema inhibition relative to the reference drug celecoxib (ED50 : 33.9 mg kg(-1) and 85.2% edema inhibition). Compounds 6-11 and 18 were weakly cytotoxic at 10 mu M against 59 cell lines compared with the reference standard 5-fluorouracil (5-FU). Compounds 6-11 had optimal selectivity against COX-2. The selectivity index (SI) range was > 200-490 and was comparable to that for celecoxib [COX-2 (SI) > 416.7]. In contrast, compounds 12, 13, and 16-18 were nonselective COX inhibitors with a selectivity index range of 0.92-0.25. The carbonic anhydrase inhibition assay showed that sulfonamide incorporating trimellitimides 6-11 inhibited the cytosolic isoforms hCA I and hCA II, and tumor-associated isoform hCA IX. They were relatively more susceptible to inhibition by compounds 8, 9, and 11. The K-1 ranges were 54.1-81.9 nM for hCA I, 25.9-55.1 nM for hCA II, and 46.0-348.3 nM for hCA IX. (C) 2018 Elsevier Science. All rights reserved.
out for all compounds and acetazolamide (AAZ), the reference agent, in the active sites of hCA I and hCA II. Generally, the compounds showed high affinity through salt bridge formation and metal coordination with Zn2+ ion and π-stacking interaction with His94 residue. According to in silico Absorption, Distribution, Metabolism and Excretion (ADME) studies, the pharmacokinetic parameters of all compounds
摘要 抑制碳酸酐酶 (CA) 已成为治疗青光眼、癫痫、肥胖和癌症等多种疾病的一种有前景的方法。因此,CA抑制剂(CAIs)的设计是药物化学的一个突出领域。由于异吲哚啉-1,3-二酮作为 CAI 的治疗潜力,本文使用亲和层析和一系列异二氢吲哚-1,3-二酮对水合酶活性的抑制作用从人红细胞中纯化 hCA I 和 hCA II 同工酶。研究了这些同工酶。在这些化合物中,发现化合物 3a 是对 hCA I 最有效的化合物,IC50 值为 7.02 μM,而化合物 3c 是对 hCA II 最有效的化合物,IC50 值为 6.39 μM。而且,在 hCA I 和 hCA II 的活性位点对所有化合物和乙酰唑胺 (AAZ)(参考药物)进行了分子对接研究。通常,这些化合物通过盐桥形成和与 Zn2+ 离子的金属配位以及与 His94 残基的 π 堆积相互作用表现出高亲和力。根据计算机吸收、分布、代谢和排泄
Evaluation of xanthine oxidase inhibitor properties on isoindoline-1,3-dion derivatives and calculation of interaction mechanism
作者:Özlem Gunduğdu、Samir Abbas Ali Noma、Tugba Taskin-Tok、Burhan Ateş、Nurhan Kishali
DOI:10.1016/j.molstruc.2019.127523
日期:2020.3
the present study was to synthesis of isoindole-1,3(2H)-dione (Phthalimides) derivatives and to investigation the inhibition of xanthineoxidase (XO). In study, xanthineoxidaseinhibitoryactivities of complexes were observed in the range from 7.15 to 22.56 μM for isoindole-1,3-dione (2a-c and 3a-c). N-phenyl isoindole-1,3-dione derivatives (2c, 3c) showed better activity (almost two times) than the
The present invention is an electrophotographic photoconductor having a photosensitive layer on a conductive substrate. The photosensitive layer contains trimellitimide esters additives.
The present invention is an electrophotographic photoconductor having a photosensitive layer on a conductive substrate. The photosensitive layer contains trimellitimide esters additives.