A New Lignan and Four New Lignan Glycosides from <i>Mananthes patentiflora</i>

Abstract

Abstract A new lignan, 5‐hydroxyjusticidin A (= 9‐(1,3‐benzodioxol‐5‐yl)‐5‐hydroxy‐4,6,7‐trimethoxynaphtho[2,3‐ c ]furan‐1(3 H )‐one; 1 ), and four new diphyllin‐type lignan glycosides, mananthosides C–F ( 2 – 5 ), containing glucosyl (Glc), arabinosyl (Ara), galactosyl (Gal), and/or apiosyl residues, have been isolated from Mananthes patentiflora , together with five known compounds. Their structures and configurations were elucidated by in‐depth 1D‐ and 2D‐NMR experiments, as well as MS analysis.