7-epi-griffonilide, a new lactone from Bauhinia pentandra: complete 1H and 13C chemical shift assignments.

A new lactone, 7-epi-griffonilide (1), and six known compounds, 2, 3a - 3c, 4a and 4b, were isolated from the leaves of Bauhinia pentandra (Fabaceae). The structures elucidation of 1 and 2 were based on detailed 2D NMR techniques and spectral comparison with related compounds, leading to complete assignment of the 1H and 13C NMR spectra.

Chemical composition of the essential oil and fixed oil Bauhinia pentandra (Bong.) D. Dietr.

Background: Bauhinia pentandrais popularly known as "mororó" and inhabits the Caatinga and Savannah biomes.

Objective: This paper reports the chemical composition of the essential and fatty oils of the leaves from B. pentandra.