id author title date pages extension mime words sentence flesch summary cache txt ht24wh26f8f Annette Vitale Brown Total Synthesis and Precursor Directed Biosynthesis of Epothilone Analogues 2004 .txt text/plain 249 11 33 However, when intermediates including the C14-Me group were subjected to epothilone producing enzymes, the desired products were not formed in quantities comparable to the natural substrate. The epothilones are a family of natural products isolated as secondary metabolites from the soil bacteria, Sorangium cellulosum. cache/ht24wh26f8f.txt txt/ht24wh26f8f.txt