Febrifugine是一种喹唑啉酮类生物碱，具有双重生物学活性：一方面可抑制恶性疟原虫，发挥抗疟作用；另一方面能通过抑制DNA合成、诱导细胞凋亡及降低类固醇水平的多重机制，实现对膀胱癌的抑制效果。

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