Lignans neolignans, and related compounds

Natural phenanthrenes and their biological activity.

Antioxidant and hepatoprotective effects of Schisandra chinensis pollen extract on CCl4-induced acute liver damage in mice.

Progress on the chemistry of dibenzocyclooctadiene lignans.

Anti-AIDS agents-XXVI. Structure-activity correlations of gomisin-G-related anti-HIV lignans from Kadsura interior and of related synthetic analogues

From the stems of Kadsura heteroclita, two new lignans named heteroclitins F and G were isolated and their structures were determined by various spectroscopic means including an X-ray diffraction method. Dibenzocyclooctadiene type lignans and related compounds isolated from the stems of K. heteroclita, potently inhibited the lipid peroxidation in the rat liver homogenate stimulated by Fe(2+)-ascorbic acid, CCl4-reduced form of nicotinamide adenine dinucleotide phosphate (NADPH) and adenosine 5'-diphosphate-NADPH.

Isolation of novel lignans, heteroclitins F and G, from the stems of Kadsura heteroclita, and anti-lipid peroxidative actions of heteroclitins A-G and related compounds in the in vitro rat liver homogenate system.

Constituents of Ephemerantha lonchophylla (HOOK. f.) P. F. HUNT et SUMMERH, which is used as a source plant of the Chinese crude drug "Shi-Hu", were examined and four new phenolic compounds, 3-O-methylgigantol (2), ephemeranthoquinone (3), ephemeranthol-A (5), and ephemeranthol-B (7), and a new diterpene glucoside named ephemeranthoside (9) were isolated along with four known compounds, denbinobin (1), 4, 7-dihydroxy-2, 3-dimethoxyphenanthrene (4), erianthridin (6), and gigantol (8). The structures of the new compounds were determined on the basis of spectroscopic data.

https://www.jstage.jst.go.jp/article/cpb1958/39/3/39_3_593/_pdf

Constituents of Ephemerantha lonchophylla; Isolation and Structure Elucidation of New Phenolic Compounds, Ephemeranthol-A, Ephemeranthol-B, and Ephemeranthoquinone, and of a New Diterpene Glucoside, Ephemeranthoside

Tohru Kikuchi

Papers

Isolation of novel lignans, heteroclitins F and G, from the stems of Kadsura heteroclita, and anti-lipid peroxidative actions of heteroclitins A-G and related compounds in the in vitro rat liver homogenate system.

Constituents of Ephemerantha lonchophylla; Isolation and Structure Elucidation of New Phenolic Compounds, Ephemeranthol-A, Ephemeranthol-B, and Ephemeranthoquinone, and of a New Diterpene Glucoside, Ephemeranthoside