... can be successfully used in the synthesis of pharmacologically important indoles and i8-carbolines [3]. In the course of our extensive studies on the reactivity of heterocycles with a ... Heterocyclic Chem., 25, 1 (1988). ... 1, 2189 (1984); [b] С J. Moody and JG Ward, ibid., 2895 (1984). ...