S-37 Power of Natural Products   S37-1. Chemical Synthesis and Rational Design of Ion Channel Functions   S37-2. Synthesis of chromone and flavonoid derivatives by Michael-aldol reaction and development of HTS protein- or cell based assays for discovering of new natural products based compounds   S37-3. Exploration for New Medicinal Leads by Use of Natural Products Inhibiting Nuclear Export of NES-contained Proteins   S37-4. Natural products-based chemical biology   S37-5. Search for Leads of Therapeutic Agents which Regurate Ubiquitin Ligases from Natural Resources   S37-6. Natural product synthesis by means of construction of heerocyclic compound