Gonda, Jozef; Martinkova, Miroslava; Zadrosova, Andrea; Sotekova, Monika; Raschmanova, Jana; Conka, Patrik; Gajdosikova, Eva; Kappe, C. Oliver
Tetrahedron Letters, 2007 , vol. 48, # 39 p. 6912 - 6915