1. USDA-ARS, Natural Products Utilization Research Unit, University, Mississippi 38677, Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USDA-ARS, Formosan Subterranean Termite Research Unit, New Orleans, Louisiana 70124, and Institute of Plant Biology and Biotechnology, Timiriazeva, 45, Almaty, 05040, Republic of Kazakhstan