Development of a LC–MS/MS method for Enn B and Bea quantification in mice tissue.
Nine days i.p. treatment of Enn B or Bea showed no systemic toxicity in mice.
Contribution of hepatic/intestinal metabolism for Enn B but not Bea was suggested.
Both substances showed distinct tissue accumulation with Bea being more potent.
Tumor accumulation of Enn B and Bea emphasizes their anticancer potential