Synthesis and biological activity evaluation of lignan lactones derived from (−)-cubebin - da Silva, R; de Souza, G H; da Silva, A A; de Souza, V A; Pereira, A C; Royo Vde, A; e·Silva, M LA; Donate, P M; de Matos Araújo, A L; Carvalho, J CT; Bastos, J K (Bioorg Med Chem Lett, 2005)