-2-carboxylate with ammonia. Upon addition of aldehydes or ketones to the reaction mixture, 3-substituted 4-cyano-1,2,3,4-tetrahydro-1-oxo-β-carbolines were obtained in a one-pot condensation. When cyclic ketones are used, the procedure allows a convenient synthesis of tetracyclic spiro compounds. β-carbolines - cyclizations - multicomponent reactions - indoles - lactams
在旨在合成具有更有利的溶解性的细胞毒性β-咔啉
生物碱bauerine C的类似物的项目中,通过用
氨处理3-(
氰基甲基)
吲哚-2-羧酸乙酯来制备3-
氨基类似物。在将醛或酮加至反应混合物中后,通过一锅缩合反应获得3-取代的4-
氰基-1,2,3,4-四氢-1-氧代-β-咔啉。当使用环状酮时,该方法可以方便地合成四环螺化合物。 β-咔啉-环化-多组分反应-
吲哚-内酰胺