1. Beijing Advanced Innovation Center for Tree Breeding by Molecular Design Beijing Key Laboratory of Lignocellulosic Chemistry Beijing Forestry University No. 35 Tsinghua East Road Haidian District Beijing 100083 P. R. China
2. Department of Chemistry and the Key Laboratory of Atomic & Molecular Nanosciences Tsinghua University Beijing 100084 P.R. China
3. Department of Chemistry Organic and Bioorganic Chemistry University of Graz Heinrichstrasse 28/II 8010 Graz Austria
4. Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 TC Groningen (The Netherlands