Design, synthesis and evaluation of N2,N4-diaminoquinazoline based inhibitors of phosphodiesterase type 5
作者:Nattakarn Pobsuk、Tamkeen Urooj Paracha、Nattiya Chaichamnong、Nattapas Salaloy、Praphasri Suphakun、Supa Hannongbua、Kiattawee Choowongkomon、Dumrongsak Pekthong、Krongkarn Chootip、Kornkanok Ingkaninan、M. Paul Gleeson
DOI:10.1016/j.bmcl.2018.11.043
日期:2019.1
We describe the design, synthesis and evaluation of a series of N2,N4-diaminoquinazoline analogs as PDE5 inhibitors. Twenty compounds were prepared and these were assessed in terms of their PDE5 and PDE6 activity, ex-vivo vasodilation response, mammalian cytotoxicity and aqueous solubility. Molecular docking was used to determine the binding mode of the series and this was demonstrated to be consistent
我们描述了一系列作为PDE5抑制剂的N 2,N 4-二氨基喹唑啉类似物的设计,合成和评估。制备了二十种化合物,并根据它们的PDE5和PDE6活性,离体血管舒张反应,哺乳动物细胞毒性和水溶性对其进行了评估。分子对接用于确定该系列的结合模式,这被证明与观察到的SAR一致。化合物15是活性最高的PDE5抑制剂(IC 50 = 0.072±0.008 µM),选择性是PDE6的4.6倍。大鼠肺动脉血管舒张模型中离体评估15和22显示EC 50分别为1.63±0.72 µM和2.28±0.74 µM。