Dianilinophthalimides: Potent and Selective, ATP-Competitive Inhibitors of the EGF-Receptor Protein Tyrosine Kinase
摘要:
Dianilinophthalimides represent a novel class of inhibitors of the EGF-receptor protein tyrosine kinase with a high degree of selectivity versus other tyrosine and serine/threonine kinases. Steady-state kinetic analysis of compound 3, which showed potent inhibitory activity, revealed competitive type kinetics relative to ATP. Despite a highly symmetrical structure of compound 3, X-ray studies revealed an unsymmetrical propeller-shaped conformation of the molecule which differs clearly from that of the constitutionally related staurosporine aglycons. These conformational differences may explain the reversal of the selectivity profile of compound 3 relative to the staurosporine aglycons. In cellular assays compounds 3 and 4 have been shown to inhibit EGF-induced receptor autophosphorylation, c-fos induction and EGF-dependent proliferation of Balb/ c MK cells. This inhibition was selective as compounds had no effect on PDGF-induced receptor autophosphorylation and c-fos induction. Furthermore, compound 3 showed potent antitumor activity in vivo at well-tolerated doses.
Verbindungen der Formel I,
worin Ar₁, Ar₂, A₁, A₂, R und X die in der Beschreibung angegebenen Bedeutungen haben, weisen wertvolle pharmazeutische Eigenschaften auf und sind insbesondere gegen auf die Hemmung von Proteinkinasen ansprechende Erkrankungen, z. B. Tumoren, wirksam. Sie werden in an sich bekannter Weise hergestellt.
式 I 的化合物、
其中 Ar₁、Ar₂、A₁、A₂、R 和 X 的含义在描述中给出,它们具有重要的药用特性,对抑制蛋白激酶的疾病(如肿瘤)特别有效。它们的生产方式本身是已知的。
Trinks Uwe, Buchdunger Elisabeth, Furet Pascal, Kump Wilhelm, Mett Helmut+, J. Med. Chem, 37 (1994) N 7, S 1015-1027
Dianilinophthalimides represent a novel class of inhibitors of the EGF-receptor protein tyrosine kinase with a high degree of selectivity versus other tyrosine and serine/threonine kinases. Steady-state kinetic analysis of compound 3, which showed potent inhibitory activity, revealed competitive type kinetics relative to ATP. Despite a highly symmetrical structure of compound 3, X-ray studies revealed an unsymmetrical propeller-shaped conformation of the molecule which differs clearly from that of the constitutionally related staurosporine aglycons. These conformational differences may explain the reversal of the selectivity profile of compound 3 relative to the staurosporine aglycons. In cellular assays compounds 3 and 4 have been shown to inhibit EGF-induced receptor autophosphorylation, c-fos induction and EGF-dependent proliferation of Balb/ c MK cells. This inhibition was selective as compounds had no effect on PDGF-induced receptor autophosphorylation and c-fos induction. Furthermore, compound 3 showed potent antitumor activity in vivo at well-tolerated doses.