1. Department of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, University of Athens, 157 71 Athens, Greece, Institute of Organic Chemistry, University of Zurich, 8057 Zürich, Switzerland, School of Pharmaceutical Sciences, University of Geneva, 1211 Geneva 4, Switzerland, Department of Medical Parasitology, Swiss Tropical Institute, 4002 Basel, Switzerland, and Centre for Pharmacognosy and Phytotherapy, School of Pharmacy, University of London, London WC1N 1AX, UK deniz...