stigmast-4-ene-3-6-dione and lyoniside

To study the chemical constituents from Cyathea spinulosa.. Compounds were isolated by chromatographic techniques. Their structures were elucidated by spectral methods.. Eight compounds were isolated from the ethanol extract of Cyathea spinulosa and identified as stigmast-4-ene-3,6-dione (1), stigmast-3,6-dione (2), ergosterol (3), protocatechuic aldehyde (4), 1-O-beta-D-glucopyranosyl-(2S,3R,4E,8Z)-2-[(2-hydroxyoctadecanoyl) amido]-4,8- octadecadiene-1,3-diol (5), (2S,3S, 4R)-2-[(2'R) -2'-hydroxytetracosanoylamino]-1,3,4-octadecanetriol (6), beta-sitosterol (7), daucosterol (8).. Compounds 1-6 are isolated from this plant for the first time.

Topics: Benzaldehydes; Catechols; Cholestenones; Ergosterol; Ferns; Molecular Structure; Plant Stems; Sitosterols

To study the chemical constituents of ethyl acetate extract from the roots of Actinidia chrysantha.. Chromatographic methods were used to isolate the compounds from ethyl acetate extract from the roots of Actinidia chrysantha and chemical and spectral methods were used to elucidate the structures of the isolated compounds.. Five compounds were identified as stigmast-3, 6-dione (I), beta-sitosterol (II), ursolicacid (III), beta-daucosterol (IV), 2alpha, 3beta, 23-triol-12-en-28-ursolic acid (V).. Those compounds are obtained from the plant for the first time.

Topics: Acetates; Actinidia; Cholestenones; Magnetic Resonance Spectroscopy; Molecular Structure; Plant Roots; Plants, Medicinal; Sitosterols