1. Department
of Marine Biotechnology, Korea University of Science and Technology, Daejeon 350-360, Republic of Korea
2. Marine
Natural Products Laboratory, Korea Institute of Ocean Science and Technology, Ansan 426-744, Republic of Korea
3. Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
4. Department
of Biotechnology, Bangabandhu Sheikh Muzibur Rahman Agricultural University, Dhaka 1706, Bangladesh