New Stilbene Dimer Compounds from the Fruits of Hypericum patulum and Their Antioxidant and Anti-α-Glucosidase Activities
Three previously undescribed phenolic dimers, including a pair of enantiomeric stilbene dimers (1a/1b) and one optically pure stilbene dimer (2), were separated from the fruits of the Miao medicine Hypericum patulum Thunb. Structural clarification and assignment of absolute configurations were achieved through 1D/2D NM...