Novel Hopanoic Acid and Depside from the Lichen Dirinaria applanata

Özet

From the extract of lichen Dirinaria applanata, two hopane derivatives including 1-acetoxy-3- hydroxy-21-hopan-29-oic acid (1), hopane-3, 6, 21-triol (2) and a depside namely 2-O- methylnordivaricatic acid (3) were isolated and identified by extensive analyzing 1D-NMR, 2D-NMR, HRESIMS, and FT-IR. Notably, compound 1 and 3 were novel compounds while compound 2 was isolated from this lichen species for the first time.