1. Department Toxicology & Food Safety, Lab. Genie Chimique, Ecole Nationale Supérieure Agronomique de Toulouse, UMR-CNRS 5503, Agrobiopole-BP 107, F31326 Castanet, Tolosan Cedex, France, Department of Chemistry, Wake Forest University, Winston−Salem, North Carolina 27109-7486, IARC, 150 Cours Albert Thomas, 69000 Lyon, France, and Department of Chemistry, University of Guelph, Guelph, Ontario N1G 2W1, Canada