Abstract
A novel alkaloid with a hexa-tetra-hexa-cyclic skeleton, Bi-4-methoxycarbonyl-2-quinolone (1), was discovered during the investigation of Brucea javanica. Additionally, six known alkaloids (2–7) were also found. The chemical structures of these compounds were identified using HRESIMS and 1D and 2D NMR spectroscopic analysis. Additionally, the absolute configuration of the new compound 1 was determined through X-ray single crystal diffraction. Compound 1 exhibited significant anti-inflammatory activity in RAW264.7 cells and demonstrated promising anti-cancer effects in Lewis cells.
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