together with twelve known compounds (1, 2, 4–13) were isolated from the roots of Salvia
miltiorrhiza. Their structures were mainly elucidated from detailed spectroscopic data. All
isolated compounds were evaluated for their ability to inhibit lipopolysaccharide-induced
nitric oxide production in RAW264. 7 macrophages. Compound 11 showed a strong
inhibitory effect, with an IC50 value of 3.4±1.2 μM.