J Lee, YJ Lee, SM Oh, JM Yi, NS Kim, OS Bang - Molecules, 2013 - mdpi.com
A new tetrahydrofuran lignan,(7 S, 8 R, 7'S, 8'S)-3-methoxy-3', 4'-methylenedioxy-7, 9'-
epoxylignane-4, 7', 9-triol (1), and 21 known compounds 2–22 were isolated from the roots …