Inhibition of FcεRI-Mediated Activation of Mast Cells by 2,3,4-Trihydropyrimidino[2,1-<i>a</i>]isoquinolines
作者:Dieter Scholz、Hannelore Schmidt、Eva E. Prieschl、Robert Csonga、Winfried Scheirer、Virginia Weber、Anna Lembachner、Gunther Seidl、Gudrun Werner、Peter Mayer、Thomas Baumruker
DOI:10.1021/jm9706628
日期:1998.3.1
designated CPII, stimulation by IgE plus antigen, and a reporter gene construct with the TNF alpha promoter linked to luciferase as a read-out system. Via screening about 50,000 substances, compound 2 was found to inhibit the reporter gene induction in the submicromolar range in this assay. Analogues of compound 2 of the 2,3,4-trihydropyrimidino[2,1-a]isoquinoline type were synthesized starting from 2-alkyl-substituted
如今,基于报告基因技术的测定方法代表了制药行业中发现干扰刺激后靶细胞激活和信号传导的新型化合物类别的重要工具。在这里,我们描述了一种针对IgE加抗原肥大细胞活化的报告基因测定法,旨在鉴定预防I型过敏(过敏性鼻炎,过敏性结膜炎,过敏性哮喘以及急性和慢性荨麻疹)的物质。该测定基于命名为CPII的鼠类肥大细胞系,IgE加抗原刺激以及带有与荧光素酶连接的TNFα启动子作为报告系统的报告基因构建体。通过筛选约50,000种物质,发现该化合物2在该测定中抑制了亚微摩尔范围内的报告基因诱导。2的化合物2的类似物 由2-烷基取代的苯甲腈经1,3-二氨基丙烷的氨解,2-取代的2-苯基-1,4,5,6-的双金属化反应合成了3,4-三氢嘧啶并[2,1-a]异喹啉型。四氢嘧啶与正丁基和仲丁基butyl,与羧酸甲酯反应,最后进行酸性脱水。从约50种衍生物中选择化合物41作为前导结构,IC50为0.2 microM,TC50为2