1. Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules College of Chemistry & Chemical Engineering Hubei University Wuhan 430062 P. R. China
2. School of Chemistry and Pharmaceutical Sciences Guangxi Normal University Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources Guilin 541004 P. R. China
3. Université de Strasbourg, CNRS-UMR7177 Institut de Chimie de Strasbourg 4 rue Blaise Pascal 67008 Strasbourg France