[1] Univ Babes Bolyai, Dept Organ Chem, RO-3400 Cluj Napoca, Romania
[2] Univ Nacl Autonoma Mexico, Inst Quim, Mexico City 04510, DF, Mexico
[3] Univ Rouen, F-76821 Mt St Aignan, France
[4] Fac Sci Rouen, IRCOF, CNRS, Lab Associe DO464, F-76821 Mt St Aignan, France