Dereplication of phenolic derivatives of Qualea grandiflora and Qualea cordata (Vochysiaceae) using liquid chromatography coupled with ESI-QToF-MS/MS - Carnevale Neto, F; Siquitelli, C D; Pilon, A C; Silva, D H; Bolzani, Vd S; Castro-Gamboa, I (J Braz Chem Soc, 2013)