1. Key Laboratory of Xin'an Medicine of the Ministry of Education, School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230038, P. R. China
2. Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry(WISCh), Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
3. Institute of Pharmaceutical Chemistry, Anhui Academy of Chinese Medicine, Hefei, 230038, P. R. China