Martin-Munoz, Maria Gema; Fierros, Maria; Rodriguez-Franco, Maria Isabel; Conde, Santiago
Tetrahedron, 1994 , vol. 50, # 23 p. 6999 - 7008

Barry, J.; Bram, G.; Decodts, G.; Loupy, A.; Orange, C.; et al.
Synthesis, 1985 , # 1 p. 40 - 45