1. Department of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan
2. Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
3. Department of Fragrance and Cosmetic Science, Kaohsiung Medical University, 100 Shi-Chuan first Road, Kaohsiung 80708, Taiwan