10-Demethoxystegane, a New Lignan from Steganotaenia araliacea

10-Demethoxystegane, a New Lignan from <i>Steganotaenia </i><i>a</i><i>raliacea</i> Novel Antimitotic Dibenzocyclo-Octadiene Lignan Constituents of the Stem Bark of Steganotaenia araliacea Oxygenated Lignans from the Fruits of <i>Schisandra arisanensis</i> Lignans and neolignans from Licaria armeniaca Lignans from the wood of Aralia bipinnata Schisandrene, a Dibenzocyclooctadiene Lignan from <i>Schisandra </i><i>c</i><i>hinensis</i>:  Structure−Antioxidant Activity Relationships of Dibenzocyclooctadiene Lignans Cytotoxic Lignans from the Stem Bark of <i>Magnolia officinalis</i> Two New Lignans from the Stem Bark of Magnolia obovata and Their Cytotoxic Activity Arylnaphthalide Lignans from Cleistanthus collinus Two new pregnane alkaloids from Sarcococca orientalis