Flavonas, lignanas e terpeno de Piper umbellata (Piperaceae) Flavones, lignans and terpene from Piper umbellata (Piperaceae)

Abstract

The phytochemical investigation of Piper umbellata leaves yielded nine compounds including one terpenoid glucoside, five flavones (vitexin 2"-O-β-glucopyranoside, apigenin 8-C-β-D-glucopyranoside,orientin 8-C-β-D-glucopyranoside,5-hydroxy-7,3',4'-trimethoxy-flavone and velutin), two lignans (sesamin e dihydrocubebin) and 4-nerolidylcathecol. Excepting 4-nerolidylcathecol, all compounds have not been described from this species yet.

Keywords

• Piper umbellata
• Potomorphe umbellata
• constitutive metabolites