1. Graduate Institute of Natural
Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan, Republic of China
2. Department of Pharmacognosy
and Natural Products Chemistry, Faculty of Pharmacy, Ain-Shams University, Organization of African Unity
Street 11566, Abassia, Cairo, Egypt
3. Graduate Institute of Natural
Products, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan, Republic of China
4. Graduate School of Pharmaceutical
Sciences, Tohoku University, Aoba-yama,
Aoba-ku, Sendai 980-8578, Japan
5. School of Pharmacy, College
of Pharmacy, China Medical University,
Taichung 404, Taiwan, Republic of China
6. Chinese Medicine Research and
Development Center, China Medical University Hospital, Taichung 404, Taiwan, Republic of China
7. Center for Molecular Medicine, China Medical University Hospital, Taichung 404, Taiwan,
Republic of China