1. Laboratoire
de Chimie Organique, Institute of Chemistry, Biology and Innovation
(CBI), UMR 8231 ESPCI ParisTech/CNRS/PSL Research University, 10 rue Vauquelin, 75231-Paris Cedex 05, France
2. Laboratoire GlaxoSmithKline 100 Route
de Versailles, 78160 Marly le-Roi, France