A new lignan and two eudesmanes from Lepidozia vitrea

A new lignan, 1, was isolated from Lepidozia vitrea, together with two known eudesmane terpenoids, 2 and 3, as well as 7,8-dihydroxycoumarin (4). Their structures were elucidated on the basis of extensive 1D- and 2D-NMR as well as MS analyses.