Quantitative aspects of the receptor binding of cytokinin agonists and antagonists
作者:Hajime Iwamura、Noboru Masuda、Koichi Koshimizu、Satoshi Matsubara
DOI:10.1021/jm00360a010
日期:1983.6
4-anilino- and 4-(alkylamino)-2-methylpyrrolo[2,3-d]pyrimidines showed cytokinin and anticytokinin activities, depending on the structure of their 4-substituents, and the antagonistic nature of the latter was established kinetically. The effect of the substituent on these activities was analyzed quantitatively by using physicochemical parameters and regression analysis to give a single, common equation for
同类的4-苯胺基-和4-(烷基氨基)-2-甲基吡咯并[2,3-d]嘧啶显示出细胞分裂素和抗细胞分裂素的活性,取决于其4-取代基的结构,并且在动力学上确定了后者的拮抗性质。通过使用理化参数和回归分析定量分析了取代基对这些活性的影响,从而为激动剂和拮抗剂提供了一个通用的方程式。结果表明,N 4取代基的最大宽度是与受体结合,因此对活性的程度以及对激动或拮抗活性的质量的重要因素。取代基的吸电子作用和疏水性进一步增强了结合,从而增强了活性,而与活性的质量无关。