1. College of Chemical
Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
2. State Key Laboratory of Natural Medicines,
School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China
3. Jiangsu Key Lab for the Chemistry & Utilization of Agricultural and Forest Biomass, Nanjing Forestry University, Nanjing 210037, P. R. China