Acetylene based short route from 2,2,6,6-tetramethylpiperidin-4-one oxime to 2-(pyrazol-5-yl)-4,5,6,7-tetrahydropyrrolo[3,2-c]pyridines
作者:Elena F. Sagitova、Denis N. Tomilin、Olga V. Petrova、Arsalan B. Budaev、Lyubov N. Sobenina、Boris A. Trofimov、Guoqiang Q. Yang、Rui Hu
DOI:10.1016/j.mencom.2019.11.018
日期:2019.11
Pharmaceutically relevant substituted 2-(pyrazol-5-yl)-4,5,6,7-tetrahydropyrrolo [3,2-c]pyridines have been assembled in good to excellent yields via the reaction of 2,2,6,6-tetramethylpiperidin-4-one oxime with acetylene, cross-coupling of the resulting 4,4,6,6-tetramethyl-4,5,6,7 tetrahydropyrrolo[3,2-c]pyridines with aroylbromoacetylenes, and reaction of the formed 2-(aroylethynyl)-4,4,6,6-tetramethyl-4
药学上相关的取代的2-(吡唑-5-基)-4,5,6,7-四氢吡咯并[3,2-c]吡啶已通过2,2,6,6-反应以良好至极好的收率组装四甲基哌啶-4-酮肟与乙炔,生成的4,4,6,6-四甲基-4,5,6,7四氢吡咯并[3,2-c]吡啶与芳酰基溴乙炔的交叉偶联,以及形成的2 -(芳酰基乙炔基)-4,4,6,6-四甲基-4,5,6,7-四氢吡咯并[3,2-c]吡啶与肼。