cytellin and crenatoside

To study the chemical constituents of involatile moiety of Pogostemon cablin.. Compounds were isolated and purified by repeated column chromatography, and their structures were elucidated by spectroscopic analysis.. Nine compounds have been isolated and identified: epifriedelinol (1), 5-hydroxymethol-2-furfural (2), succinic acid (3), beta-sitosterol (4), daucosterol (5), crenatoside (6), 3'''-O-methylcrenatoside (7), isocrenatoside (8), and apigenin-7-O-beta-D-(6"-p-coumaryl)-glucoside (9).. Compounds 2, 3, 6-8 were isolated from Pogostemon genus for the first time.

Topics: Caffeic Acids; Cholestenones; Furaldehyde; Glucosides; Lamiaceae; Molecular Structure; Oils, Volatile; Sitosterols; Succinic Acid

To study chemical constituents of the aerial parts of Rhamnus crenatus sieb. et zucc.. The chemical constituents were isolated by chromatographic methods and their structures were elucidated on the basis of spectral analysis.. Five compounds were isolated and their structures were identified as crenatoside (1), torachrysone (2), emodin (3), emodin-1-O-beta-D-glucopyranoside (4) and beta-sitosterol (5) respectively.. Compound 1 is a new compound and the others were isolated from Rhamnus crenatus for the first time.

Topics: Caffeic Acids; Emodin; Glucosides; Molecular Conformation; Molecular Structure; Plant Components, Aerial; Plants, Medicinal; Rhamnus; Sitosterols