(2R,3R)-Viridifloric Acid is an intermediate in the synthesis of (+)-Lycopsamine (L487525), which occurs in pyrrolizidine alkaloid-containing plants, which are the most common poisonous plants affecting livestock, wildlife, and humans. They are being known as hepatotoxins and tumorigens.It has been shown that pyrrolizidine Alkaloid-Derived DNA Adducts, are the common biological biomarker of pyrrolizidine alkaloid-induced liver tumor formation.