Phenylamino-Pyrimidine (PAP) Derivatives: A New Class of Potent and Selective Inhibitors of Protein Kinase C (PKC)
作者:Jürg Zimmermann、Giorgio Caravatti、Helmut Mett、Thomas Meyer、Marcel Müller、Nicholas B. Lydon、Doriano Fabbro
DOI:10.1002/ardp.19963290707
日期:——
Phenylamino‐pyrimidines represent a novel class of inhibitors of the protein kinase C with a high degree of selectivity versus other serine/threonine and tyrosine kinases. Steady state kinetic analysis of N‐(3‐[1‐imidazolyl]‐phenyl)‐4‐(3‐pyridyl)‐2‐pyrimidinamine (5), which showed potent inhibitory activity, revealed competitive kinetics relative to ATP. The adjacent H‐bond acceptor of the pyrimidine
苯氨基嘧啶是一类新型的蛋白激酶 C 抑制剂,与其他丝氨酸/苏氨酸和酪氨酸激酶相比具有高度选择性。N-(3-[1-咪唑基]-苯基)-4-(3-吡啶基)-2-嘧啶胺(5)的稳态动力学分析显示出有效的抑制活性,揭示了相对于ATP的竞争动力学。发现与苯胺的 H 键供体相邻的嘧啶部分的相邻 H 键受体对抑制活性至关重要。N-(3-Nitro-phenyl)-4-(3-pyridyl)-2-pyrimidinamine (7) 优先抑制 PKC-α (IC50 = 0.79 μM) 而不是其他测试的亚型。PKC-α 的抑制常数与对 T24 人膀胱癌细胞的抗增殖作用呈定性相关,但也有一些例外。