人碳酸酐酶 IX (hCA IX) 活性位点的疏水和亲水边缘同时含有锌离子作为催化核心的一部分,同时匹配设计和合成有效和选择性抑制剂使用双尾方法. 十七种新化合物5a-q被设计为具有苯磺酰胺部分作为锌结合基团。此外,选择N-取代的腙和N-苯基片段分别作为亲水和疏水部分,以实现与活性位点的相应半部分的良好相互作用。所有合成的化合物都成功地抑制了 CA IX,IC 50值在纳摩尔范围内为 13.3 至 259 nM。化合物,5h、5c、5m、5e和5k是在低纳摩尔范围内有效抑制肿瘤相关 CA IX 同工型的前五种化合物(K I = 13.3、22.6、25.8、26.9 和 27.2 nM,分别)。与脱靶异构体(hCA I 和 II)相比,目标化合物5a-q对肿瘤相关异构体(hCA IX 和 XII)具有显着的选择性。此外,根据 US-NCI 协议,对一组 59 种癌细胞系的抗增殖活性进行了评估。化合物5d
Substituted benzene sulfonamides incorporating 1,3,5-triazinyl moieties potently inhibit human carbonic anhydrases II, IX and XII
摘要:
A series of benzene sulfonamides incorporating 1,3,5-triazinyl moieties were synthesized using cyanuric chloride as starting material. Inhibition studies against human carbonic anhydrase (hCA, EC 4.2.1.1) isoforms I, II (cytosolic) and IX, XII (transmembrane, tumor-associated) isoforms were performed with the new compounds. hCA I was modestly inhibited (K(I)s in the range of 87 nM-4.35 mu M), hCA II was moderately inhibited by most of the new compounds (K(I)s in the range of 12.5-130 nM), whereas the tumor associated isoforms were potently inhibited, with K(I)s in the range of 1.2-34.1 nM against hCA IX and of 2.1-33.9 against hCA XII, respectively. Docking studies of some of the new compounds showed an effective binding mode within the enzyme active site, as demonstrated earlier by X-ray crystallography for structurally-related sulfonamides incorporating 1,3,5-triazinyl functionalities. (C) 2014 Elsevier Ltd. All rights reserved.
A series of triaminotriazine derivatives (compounds 5a-f, 6a-x, and 7a-g) was designed, synthesized, and evaluated for their inhibition activities to colorectal cancer (CRC) cell lines (HCT-116 and HT-29). Most of the synthesized compounds demonstrated moderate anti-proliferatory effects on both HCT-116 and HT-29 cell lines at the concentration of 10 mu M. The inhibitory activities against HCT-116 and HT-29 cell lines were discussed to develop the structure-activity relationships of this new series. Compounds 61 and 6o exhibited prominent inhibition activities toward HCT-116, with IC50S of 0.76 and 0.92 mu M, respectively. The in vivo antitumor studies and pharmacokinctics of compound 61 showed that it might be a promising new hit for further development of antitumor agents. (c) 2006 Elsevier Ltd. All rights reserved.
Rationale design of novel substituted 1,3,5-triazine candidates as dual IDH1(R132H)/ IDH2(R140Q) inhibitors with high selectivity against acute myeloid leukemia: In vitro and in vivo preclinical investigations
作者:Haytham O. Tawfik、Mai H.A. Mousa、Mohamed Y. Zaky、Ahmed M. El-Dessouki、Marwa Sharaky、Omeima Abdullah、Mervat H. El-Hamamsy、Ahmed A. Al-Karmalawy