1. Natural Products Utilization
Research Unit, Thad Cochran National Center for Natural Products Research,
Agricultural Research Service, U.S. Department of Agriculture, P.O. Box 8048, University of Mississippi, University, Mississippi
38677, United States
2. Dipartimento
di Scienze Chimiche,
Complesso Universitario Monte Sant’Angelo, Università di Napoli Federico II, Via Cintia 4, 80126 Napoli, Italy
3. Istituto di Chimica Biomolecolare, CNR, Pozzuoli, Italy