TY - JOUR T1 - A new derivative of dihydroochnaflavone isolated from Luxemburgia species (Ochnaceae) and the complete ¹H and 13C NMR chemical shifts assignments JO - Revista Brasileira de Farmacognosia A1 - Carvalho, Mario G. de A1 - Silva, Virginia C. A1 - Rocha Jr, José G. da SN - 0102-695X UL - 10.1590/S0102-695X2009000100008 VL - 19 Y1 - 2009 PB - Brasil ER -