1,2,4-Triazolo[4,3-<i>c</i>]quinazolines: a bioisosterism-guided approach towards the development of novel PCAF inhibitors with potential anticancer activity
作者:Mohamed H. El-Shershaby、Adel Ghiaty、Ashraf H. Bayoumi、Hany E. A. Ahmed、Mona S. El-Zoghbi、Khaled El-Adl、Hamada S. Abulkhair
DOI:10.1039/d1nj00710f
日期:——
Targeting PCAF with small inhibitor molecules has emerged as a potential therapeutic strategy for the treatment of cancer.
通过小分子抑制剂瞄准PCAF已经成为治疗癌症的潜在治疗策略。
New [1,2,4]triazolo[4,3-c]quinazolines as intercalative Topo II inhibitors: Design, synthesis, biological evaluation, and in silico studies
作者:Ahmed A. Gaber、Mohamed Sobhy、Abdallah Turky、Wagdy M. Eldehna、Samiha A. El-Sebaey、Souad A. El-Metwally、Abeer M. El-Naggar、Ibrahim M. Ibrahim、Eslam B. Elkaeed、Ahmed M. Metwaly、Ibrahim H. Eissa
DOI:10.1371/journal.pone.0274081
日期:——
Fifteen quinazoline derivatives were designed and synthesized as DNA intercalators. The cytotoxicity of the designed members was assessed against HCT-116 and HepG2 cancer cell lines. In addition, the topoisomerase II (Topo II) inhibitory effect was assessed. Compound 16 was the most cytotoxic and Topo II inhibitor with low cytotoxicity against Vero cells. Compounds 16, 17, and 18 showed significant
设计并合成了 15 种喹唑啉衍生物作为 DNA 嵌入剂。针对 HCT-116 和 HepG2 癌细胞系评估了设计成员的细胞毒性。此外,还评估了拓扑异构酶 II (Topo II) 抑制效果。化合物16是细胞毒性最强的Topo II抑制剂,对Vero细胞的细胞毒性较低。化合物 16、17 和 18 显示出显着的 DNA 结合亲和力。化合物16在10μM浓度下表现出Topo II催化抑制作用。进一步的机制研究揭示了化合物 16 能够诱导 HCT-116 细胞凋亡并阻止 S 期和 G2/M 期的生长。此外,与对照细胞相比,化合物16显示BAX水平显着增加(2.18倍),而Bcl-2水平显着降低(1.9倍)。计算机模拟研究揭示了合成成员与 DNA-Topo II 复合物结合的能力。
EL-KERDAWY, MOHAMED M.;EL-KADER, ABD;ISMAIEL, M.;GINEINAH, MAGDY M.;GLENN+, J. HETEROCYCL. CHEM., 27,(1990) N, C. 497-501
A convenient synthesis of 3-aryl-1,2,4-triazolo[4,3-<i>c</i>]quinazolines
作者:Mohamed M. El-Kerdawy、Abd El-Kader M. Ismaiel、Magdy M. Gineinah、Richard A. Glennon
DOI:10.1002/jhet.5570270304
日期:1990.3
The synthesis and characterization of several 3-aryl-1,2,4-triazolo[4,3-c]quinazolines is described. The first step comprises the condensation of aromatic aldehydes with 2-(H or Cl)-4-hydrazinoquinazolines 2 to afford the corresponding hydrazones 3. The second step involves the cyclization to the title compounds 4 in bromine/acetic acid. Reaction of 4 (X = Cl) with cyclic amines gave the corresponding