1. Natural Products Chemistry Laboratory, Biotechnology Research Institute; Chonnam National University; 300 Yongbong-dong, Buk-gu; Gwangju; 500-757; Republic of Korea
2. Department of Pharmacology, Faculty of Veterinary Medicine; Cairo University; 12211- Giza; Egypt
3. Institute of Environmental Research, Faculty of Chemistry; Dortmund University of Technology; 44227; Dortmund; Germany
4. Experiment Research Institute; National Agricultural Products Quality Management Service; 80, Seonyudong 1-ro, Youngdeungpo-gu; Seoul; 150-804; Republic of Korea