An enantiomeric pair of new fatty acid-derived hydroxylated tetrahydrofurans, here named iso-petromyroxols, were isolated from sea lamprey larvae-conditioned water. The relative configuration of iso-petromyroxol was elucidated with 1D and 2D NMR spectroscopic analyses. The ratio of enantiomers (er) in the natural sample was measured by chiral-HPLC-MS/MS to be ca. 3:1 of (-)- to (+)-antipodes.
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- Relative configuration