Neglschisandrins E–F: Two New Lignans and Related Cytotoxic Lignans from Schisandra neglecta
AbstractPhytochemical investigation of an ethanolic extract of stems of Schisandra neglecta led to the isolation and identification of two new dibenzocyclooctadiene lignans, designated neglschisandrins E (1) and F (2), and thirteen known lignans. All structures and stereochemistries were determined by spectroscopic methods, including 2D-NMR techniques. The isolates were evaluated for in vitro cytotoxic activity. Among them, compounds 2–6 exhibited moderate to weak cytotoxicity against the human colorectal carcinoma HCT-8 cell line with EC50 values of 7.33~19.8 μg/mL. In addition, compounds 2–4 also exhibited marginal cytotoxicity against the human lung carcinoma A549 cell line with EC50 values of 11.8~15.0 μg/mL. View Full-Text
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Chen, M.; Xu, X.; Xu, B.; Yang, P.; Liao, Z.; Morris-Natschke, S.L.; Lee, K.-H.; Chen, D. Neglschisandrins E–F: Two New Lignans and Related Cytotoxic Lignans from Schisandra neglecta. Molecules 2013, 18, 2297-2306.
Chen M, Xu X, Xu B, Yang P, Liao Z, Morris-Natschke SL, Lee K-H, Chen D. Neglschisandrins E–F: Two New Lignans and Related Cytotoxic Lignans from Schisandra neglecta. Molecules. 2013; 18(2):2297-2306.Chicago/Turabian Style
Chen, Min; Xu, Xiumei; Xu, Bing; Yang, Panpan; Liao, Zhihua; Morris-Natschke, Susan L.; Lee, Kuo-Hsiung; Chen, Daofeng. 2013. "Neglschisandrins E–F: Two New Lignans and Related Cytotoxic Lignans from Schisandra neglecta." Molecules 18, no. 2: 2297-2306.