摘要

A novel indolomonoterpenic alkaloid, 4-hydroxy-19-methyl-16,19-seco-12,24-seco-strychnidine-10,16-dione (1), together with three known compounds 2-4 (vomicine, strychnine, and brucine), have been isolated from processed Strychnos nux-vomica. Its structure was determined by detailed spectral analysis (H-1 NMR,C-13 NMR, H-1-H-1 COSY, HMBC, and HR-ESI-MS).

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