Studies on semirigid tricyclic analogs of the nigrostriatal toxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine
作者:Raymond G. Booth、Anthony Trevor、Thomas P. Singer、Neal Castagnoli
DOI:10.1021/jm00122a031
日期:1989.2
The tetrahydro-beta-carboline derived from the condensation of N-methyltryptamine and formaldehyde, a semirigid tricyclic analogue of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) tha has been detected in the brains of normal laboratory rats, is biotransformed in a monoamine oxidase B (MAO-B) catalyzed reaction to the corresponding dihydro compound at a rate that is approximately 0.5% of that
N-甲基色胺和甲醛的缩合反应生成的四氢-β-咔啉是一种1-甲基-4-苯基-1,2,3,6-四氢吡啶(MPTP)tha的半刚性三环类似物。在单胺氧化酶B(MAO-B)催化的反应中,正常实验大鼠以约0.5%的MPTP速率生物转化为相应的二氢化合物。其中与氮原子的双键β,γ保持烯丙基特性的相应的四氢茚并吡啶是稍好的MAO-B底物。从这些类型的三环结构衍生的所提出的以碳为中心的自由基中间体中,除了存在环应变外,氮和亚甲基桥的空间位阻还可能导致其相对较差的MAO-B底物性能。