1Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
2Department of Pharmacognosy, Institute of Pharmaceutical Sciences, Karl-Franzens-Universität Graz, Graz A-8010, Austria
3National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, University, MS, 38677, USA