1. School of Pharmacy Nanjing University of Chinese Medicine Nanjing 210023 P. R. China
2. Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine Nanjing 210023 P. R. China
3. Jiangsu Key Laboratory of Research and Development in Marine Bio‐resource Pharmaceutics Nanjing University of Chinese Medicine Nanjing 210023 P. R. China
4. Anhui Qimen Institute of Snakebite Huangshan 245000 P. R. China