Synthesis of Several 3-Substituted 2-Trifluoromethylinodoles via Mannich Reaction of 2-Trifluoromethylindoles.
作者:Kazuyuki MIYASHITA、Katsunori KONDOH、Katsutoshi TSUCHIYA、Hideto MIYABE、Takeshi IMANISHI
DOI:10.1248/cpb.45.932
日期:——
Several 2-trifluoromethyl derivatives of biologically active indoles, tryptamine, indole-3-acetic acid, oxypertine and tryptophan, were synthesized starting from 2-trifluoromethylindoles by use of the Mannich reaction and subsequent nucleophilic substitution reaction as key steps. In this study, chemoselective hydrolysis and reductions of the nitrile group to the respective carboxylic acid, amine and aldehyde in the presence of the trifluoromethyl group were achieved.
以 2-三氟甲基吲哚为起点,通过曼尼希反应和随后的亲核取代反应作为关键步骤,合成了多种具有生物活性的吲哚、色胺、吲哚-3-乙酸、氧哌啶和色氨酸的 2-三氟甲基衍生物。在这项研究中,在三氟甲基存在的情况下,腈基实现了化学选择性水解和还原成相应的羧酸、胺和醛。