A new benzoylphloroglucinol derivative with an adamantyl skeleton and other constituents from Garcinia multiflora: effects on neutrophil pro-inflammatory responses.

A novel benzoylphloroglucinol derivative, garcimultiflorone D (1), with an unusual adamantyl-caged skeleton was isolated from the fruits of Garcinia multiflora, together with four known compounds. The structure of 1 was determined through extensive 1D/2D-NMR and mass-spectrometric analyses. Garcimultiflorone D (1) exhibited inhibitory activities with IC(50) values of 7.21±1.07 and 6.01±0.37 μg/ml against fMLP/CB-induced superoxide anion generation and elastase release, respectively.