Abstract
THERE is evidence that some or all of the cytotoxic effects of unsaturated pyrrolizidine alkaloids are, in some animals, caused by pyrrolic metabolites formed by enzymatic dehydro-genation of the alkaloids in the liver1,2. These metabolites are dihydropyrrolizine alcohols like I in Fig. 1 or their esters II; one such alcohol has been identified3. Compared with the parent alkaloids these metabolites are highly reactive alkylating agents, capable of reacting chemically with tissue constituents1,2,4.
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MATTOCKS, A., WHITE, I. Pyrrolic Metabolites from Non-toxic Pyrrolizidine Alkaloids. Nature New Biology 231, 114–115 (1971). https://doi.org/10.1038/newbio231114a0
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DOI: https://doi.org/10.1038/newbio231114a0
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