- Chemical compounds were extracted and identified from the stems and leaves of *Cratoxylum cochinchinense*, using various chromatography techniques, leading to the isolation of 21 different compounds.
- Out of these, one compound was a new xanthone, while several others had not been previously identified in the *Cratoxylum* plant; some were newly discovered in *C. cochinchinense*.
- The isolated compounds were assessed for their anti-rheumatoid arthritis effects, with xanthones 1-15 showing significant inhibition of synoviocyte proliferation, indicating potential therapeutic benefits.