Fig. 2: Biotransformation of the diarylpentanoid-precursor to structurally varied PECs.

a HPLC chromatogram of PECs produced by suspension cells fed with 5-(4-hydroxyphenyl)-1-phenylpentane-1,3-dione (2). b Conversion of fluorine-labeled substrate (F-2) to structurally varied fluorinated PECs by suspension cells. c Proposed biosynthetic pathway of the three types of PEC skeletons.