1-Methyl-3-pyrrolines and 2-methylisoindolines: new classes of cyclic tertiary amine monoamine oxidase B substrates
作者:You-Xiong Wang、Stéphane Mabic、Neal Castagnoli Jr
DOI:10.1016/s0968-0896(97)10020-7
日期:1998.2
Both 1-methyl-3-pyrrolines and 2-methylisoindolines are substrates for MAO-B with Vmax/Km values ranging from 200 to 2000 min-1 mM-1 at 37 degrees C. These compounds represent new classes of cyclic tertiary amine substrates for this flavoenzyme. The only other known cyclic amines that are MAO-B substrates are 1,4-disubstituted 1,2,3,6-tetrahydropyridinyl derivatives. The presence of an allylic (benzylic)
1-甲基-3-吡咯啉和2-甲基异吲哚啉均是MAO-B的底物,在37摄氏度时Vmax / Km值在200至2000 min-1 mM-1范围内。这些化合物代表了新型的环状叔胺底物这种黄素酶。作为MAO-B底物的唯一其他已知的环状胺是1,4-二取代的1,2,3,6-四氢吡啶基衍生物。所有这些化合物中烯丙基(苄基)氨基官能团的存在都可能与其底物性质有关,因为相关的哌啶基和吡咯烷基类似物在MAO-B的存在下是稳定的。本文讨论了这些化合物的能量和几何特征,与它们的底物性质有关,并预期了它们可用于探测该黄酮酶的活性位点。