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从中药鸦胆子中分得一具有新型A环结构的苦木素——鸦胆子苦烯,C_(20)H_(26)O_8.已由IR,~1HNMR,~(13)C NMR及MS推定其结构.它对KB细胞显示抑制活性.
A new type of A - ring structure of brucein - Brucein, C_ (20) H_ (26) O_8 has been isolated from the Chinese javanica sclerotiorum and has been inferred by IR, ~ 1HNMR, ~ 13C NMR and MS. Its structure shows inhibitory activity on KB cells.