The biosynthesis of the sesquiterpenoid tricothecane antibiotics

Abstract
The location of the 4(R)-[4-3H]mevalonoid hydrogen atoms at C-2 and C-10, and the incorporation of tritium from 1- and 2-3H-farnesol pyrosphosphate, suggest that a 6,7-trans-farnesol pyrophosphat acts as a precursor of the Tricothecane antibiotics.