Van Nguyen Thien Truong, Do Lien Thi My, Dang Phu Hoang, Huynh Ngoc Vinh, Dang Huu Phuc, Nguyen Thanh Tien, Tran Kim Thuy, Nguyen Huu Duc Minh, Ton That Quang
Faculty of Chemistry, VNUHCM-University of Science, Ho Chi Minh City, Vietnam.
Faculty of Environmental Science, Sai Gon University, Ho Chi Minh City, Vietnam.
Nat Prod Res. 2021 Jul;35(13):2218-2223. doi: 10.1080/14786419.2019.1667354. Epub 2019 Sep 23.
From MeOH-soluble fraction of the flowers of (Malvaceae), one new lignan, (+)-4--methyl-5'-methoxy-secoisolariciresinol (), together with four known compounds (-) were isolated. The structures were elucidated based on NMR spectroscopic analysis. The absolute configuration of was determined based on the Cotton effects in the CD spectrum. Compounds , and showed antioxidant activities with the SC values of 56.9, 19.3 and 22.7 µM, respectively.