Cruentaren A and B

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Cruentaren A and B are isomers with a molecular formula of C33H51 NO8 and Molecular weight: 589. Cruentaren A strongly inhibits the growth of yeasts and filamentous fungi. Also, it inhibited the proliferation of different cancer cell lines including a multidrug-resistant KB line. Cruentaren B shows only marginal cytotoxicity and no antifungal activity.