Towards discovery of novel scaffold with potent antiangiogenic activity; design, synthesis of pyridazine based compounds, impact of hinge interaction, and accessibility of their bioactive conformation on VEGFR-2 activities
作者:Maiy Y. Jaballah、Rabah A. T. Serya、Nasser Saad、Sohair M. Khojah、Marawan Ahmed、Khaled Barakat、Khaled A. M. Abouzid
DOI:10.1080/14756366.2019.1651723
日期:2019.1.1
Pyridazine scaffolds are considered privileged structures pertaining to its novelty, chemical stability, and synthetic feasibility. In our quest towards the development of novel scaffolds for effective vascular endothelial growth 2 (VEGFR-2) inhibition with antiangiogenic activity, four novel series of pyridazines were designed and synthesised. Five of the synthesised compounds; namely (8c, 8f, 15
哒嗪支架被认为是有关其新颖性,化学稳定性和合成可行性的特权结构。在我们寻求开发具有抗血管生成活性的有效抑制血管内皮生长2(VEGFR-2)的新型支架的过程中,设计并合成了四个新型的哒嗪系列。五个合成的化合物;即(8c,8f,15、18b和18c)表现出有效的VEGFR-2抑制效力(> 80%);IC50值范围从低微摩尔到纳摩尔;即分别为(1.8 µM,1.3 µM,1.4 µM,107 nM)的化合物8c,8f,15、18c。此外,3- [4-(6-氧代-1,6-二氢哒嗪-3-基)氧基}苯基]脲衍生物(18b)对VEGFR-2(60.7 nM)表现出纳摩尔浓度。在细胞分析中 上述化合物在10μM浓度下对VEGF刺激的人脐静脉内皮细胞增殖具有极好的抑制作用。最后,进行了广泛的分子模拟研究,以研究与VEGFR-2可能的相互作用。