1. Graduate
School of Pharmaceutical Sciences, Osaka University, Yamada-oka
1-6, Suita, Osaka 565-0871, Japan
2. Department
of Chemistry, Faculty of Science, Lampung University, Jl. Prof.
Dr. Sumantri Brodjonegoro No. 1, Bandar, Lampung 35145, Indonesia
3. School
of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan