Styrylpyrone Glycosides from Mycelium of Inonotus rheades

Mycelium ofInonotus rheades (Pers.) Bondartsev& Singer (Hymenochaetaceae) grown with illumination by blue light containedp-hydroxybenzoic acid 4-O-glucoside, protocatechoic acid 4-O-glucoside,p-coumaric acid 4-O-glucoside, caffeic acid 4-O-glucoside, and the new styrylpyrone glycosides1 and2. According to UV, IR, and NMR spectroscopic and mass spectrometric data, the new compounds were hispidin 4 ′-O-β-D-glucopyranoside (rheadoside A,1) and bisnoryangonin 4 ′-O-β-D-glucopyranoside (rheadoside B,2), which could inactivate superoxide radicals.

Source: Chemistry of Natural Compounds - November 7, 2023 Category: Chemistry Source Type: research