1. Division of Pharmaceutical Chemistry School of Health Sciences Department of Pharmacy National and Kapodistrian University of Athens Panepistimiopoli-Zografou Athens 157 84 Greece
2. Laboratory of Bioorganic Chemistry Department of Biochemistry and Biotechnology University of Thessaly Viopolis, Larissa 41500 Greece
3. Department of Chemistry University College London 20 Gordon Street London WC1H 0AJ UK
4. Institut de Recherches Servier 125 Chemin de Ronde 8290 Croissy sur Seine France
5. Division of Women's Health King's College London London SE1 1UL UK