stigmasterol and syringaresinol

A new sesquiterpene kalinturoside A (1), and 17 known compounds friedelan-3-ol (2), 24-ethyl-5a-cholesta-7, 22(E)-dien-3-one (3), friedelin (4), syringaresinol (5), α-spinasterol (6), ciwujiatone (7), syringic acid (8), scopoletin (9), apocynin (10), 1-(3-hydroxy-4, 5-dimethoxyphenyl)ethan-1-one (11), apigenin (12), 5-hydroxymethylfurfural (13), stigmasterol-3-O-β-d-glucopy-ranoside (14), bidenoside C (15), citrusin (16), irioresinol A (17) and syringaresinol-4-O-β-d-glucopyranoside (18) were isolated from the herbs of Kalimeris integrifolia. The structures of these compounds were elucidated using spectroscopic techniques such as NMR and MS. All of the compounds were isolated from this genus for the first time.

Topics: Alkynes; Antineoplastic Agents, Phytogenic; Asteraceae; Cell Line, Tumor; Drug Screening Assays, Antitumor; Drugs, Chinese Herbal; Furaldehyde; Furans; Glucosides; Humans; Lignans; Magnetic Resonance Spectroscopy; Molecular Structure; Sesquiterpenes; Stigmasterol; Triterpenes

To study the chemical constituents of the dichloromethane extracted from pine needles of Cedrus deodara.. Compounds were isolated and purified from the dichloromethane extract of pine needles by chromatography on silica gel and Sephadex LH-20. Their structures were identified on the basis of spectroscopic analysis and physicochemical property.. Nine compounds were isolated and purified. Their structures were identified as stigmasterol (1), oleanolic acid (2), parahydroxybenzaldehyde (3), beta-sitosterol (4), syringaresinol (5), daucosterol (6), p-hydroxybenzoic acid (7), gallicin (8) and gallic acid (9).. Compounds 1-3, 5 -9 are isolated from pine needles of this genus for the first time.

Topics: Cedrus; Furans; Lignans; Magnetic Resonance Spectroscopy; Methylene Chloride; Oleanolic Acid; Plant Extracts; Plant Leaves; Sitosterols; Solvents; Stigmasterol