A new cassane diterpenoid from the seed of .

In this study, a previously undescribed cassane diterpenoid, named caesalpinin JF (), along with two known cassane diterpenoids caesanine C () and tomocinol B (), was isolated from 95% EtOH extract of the seeds of Linn. Additionally, three known compounds including pulcherrin R (), syringaresinol-4'---D-glucopyranoside () and kaempferol () were also identified. The structures of the isolated compounds were elucidated by comprehensive 1D and 2D NMR spectroscopic analyses.

Two new cassane diterpenoids from the seed kernels of .

Two new cassane diterpenoids, sucupiranin MN () and sucupiranin ML (), together with two known compounds sucutinirane C () and deacetylsucutinirane C () were isolated from the seed kernels of . Their structures were elucidated by means of analysis of comprehensive spectroscopic data, especially HRESIMS and 1D/2D NMR spectroscopy. Compounds are typical furan-type cassane derivatives with an aromatized C ring.