Banara parviflora (A. Gray) Benth. is a species that belongs to Salicaceae family and is native to Southern Brazil. Fractionation of the ethanolic extract from Banara parviflora leaves afforded, a new compound identified as N1,N8-dibenzoylspermidinyl-N4-acetamide, a spermidine alkaloid. The structure was elucidated by spectroscopic methods (IR, MS, 1H, 13C and 2-D NMR).