1. School of Pharmaceutical Sciences University of Geneva Rue Michel Servet 1 1211 Genève Switzerland
2. Institute of Pharmaceutical Sciences of Western Switzerland ISPSO University of Geneva Rue Michel Servet 1 1211 Genève Switzerland
3. Institut de Chimie Moléculaire de Reims UMR CNRS 7312 Université Reims-Champagne-Ardenne UFR Sciences BP 1039, CEDEX 2 51687 Reims France