N-methylated and N,N-dimethylated alkyl and arylalkylamines was prepared and more than half of the analogues were shown to be time-dependent pseudo-first-order inhibitors of monoamine oxidase-B. Some of the time-dependent inactivators were reversible and others were irreversible with respect to prolonged dialysis following inactivation. Partition ratios ranged from zero to 11,000. These results are rationalized
制备了N-甲基化和N,N-二甲基化的烷基和芳基烷基胺族,并且一半以上的类似物被证明是时间依赖性的单胺氧化酶-B的伪一阶
抑制剂。关于灭活后的长时间透析,一些时间依赖性灭活剂是可逆的,而其他则是不可逆的。分配比率从零到11,000。这些结果是通过归因于活性位点共价加合物旋转受阻的感应效应和立体电子效应的组合而合理化的。分子力学计算表明,为了释放酶加合物,至少要克服10 kcal / mol的扭转能量。