1. Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology
2. College of Chemistry and Chemical Engineering
3. Xiamen University
4. Xiamen 361005, P. R. China
5. Laboratoire de Synthèse Organique (DCSO)
6. UMR 7652 CNRS/Ecole Polytechnique
7. Ecole Polytechnique
8. 91128 Palaiseau cedex, France