Rearranged jatrophane-type diterpenes from Euphorbia species. Evaluation of their effects on the reversal of multidrug resistance - Madureira,A.M.; Gyémánt,N.; Ugocsai,K.; Ascenso,J.R.; Abreu,P.M.; Hohmann,J.; Molnár,J.; Ferreira,M.J.U. (Planta Medica, 2004)