Photochemical In-Flow Synthesis of 2,4-Methanopyrrolidines: Pyrrolidine Analogues with Improved Water Solubility and Reduced Lipophilicity
作者:Vadym V. Levterov、Oleg Michurin、Petro O. Borysko、Sergey Zozulya、Iryna V. Sadkova、Andrey A. Tolmachev、Pavel K. Mykhailiuk
DOI:10.1021/acs.joc.8b02071
日期:2018.12.7
A practical synthesis of 2,4-methanopyrrolidines was elaborated. The key synthetic step was an intramolecular photochemical [2 + 2]-cycloaddition of an acrylic acid derivative in flow. In spite of a higher molecular weight, 2,4-methanopyrrolidines were shown to have higher solubility in water and lower lipophilicity than pyrrolidines, important characteristics of bioactive molecules in drug design
详细说明了2,4-甲基吡咯烷的实际合成。关键的合成步骤是流动中的丙烯酸衍生物的分子内光化学[2 + 2]-环加成反应。尽管分子量较高,但显示2,4-甲基吡咯烷烷在水中的溶解度比吡咯烷高,而亲脂性较低,这是药物设计中生物活性分子的重要特征。