1. Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan
2. Chemical Biology and Molecular Biophysics Program, Taiwan International Graduate Program, Academia Sinica, Taipei 11529, Taiwan
3. Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
4. Department of Indigenous Medical Resources, Gampaha Wickramarachchi University of Indigenous Medicine, Yakkala 11870, Sri Lanka
5. School of Pharmacy, College of Medicine, National Taiwan University, Taipei 100, Taiwan