Affiliation: | 1. Graduate School, University of Santo Tomas, Espana, Manila 1015, Philippines;2. Phytochemistry Laboratory, Research Center for the Natural and Applied Sciences, University of Santo Tomas, España Blvd., Manila 1015, Philippines;3. Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, D-93053 Regensburg, Germany;4. Université d’ Angers, SONAS UPRES-EA 921, UFR des Sciences Pharmaceutiques et Ingéniere de la Santé, 16 Bd Daviers, F-49100 Angers, France;5. University of Paderborn, Department of Chemistry, Warburgerstr. 100, 33098 Paderborn, Germany;6. Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., Chicago, IL 60612-7231, USA;7. State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Av. Padre Tomás Pereira, Taipa, Macau;8. Institute of Chinese Medical Sciences, University of Macau, Av. Padre Tomás Pereira, Taipa, Macau |