lignans and 5-hydroxymethylfurfural

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 different processing method and mature stage on the quantity of the Schisandra chinensis in the Xinbin region of Liaoning.. The schisantherin A and 5-hydroxymethylufrurfal (5-HMF) content in S. chinensis was determined by using the HPLC method. The organic acids content was determined by potentiometric titration. The polysaccharide content was determined by oxidation reduction titration. The volatile oil content was determined by steam distillation.. The quantity of S. chinensis was different due to different processing method and mature stage.. The different processing method and mature stage have significant influence on the quantity of S. chinensis.

Topics: Cyclooctanes; Dioxoles; Furaldehyde; Lignans; Oils, Volatile; Plant Extracts; Plants, Medicinal; Polysaccharides; Schisandra; Temperature; Time Factors

To study the chemical constituents from Radix Ranunculi Ternate.. The compounds were isolated by silica gel, Sephadex LH-20, and ODS column chromatography, and their structures were elucidated by means of spectral analysis.. Eight compounds were isolated and identified as phillygenin (I), bis-(2-ethylhexyl) phthalate (DEHP, II), henicosanoic acid methyl ester (III), 5-hydroxymethyl-furfural (IV), mixture of stigmasterol and sitosterol (V and VI), daucosterol (VII).. Compounds I-III are isolated from the genus for the first time.

Topics: Diethylhexyl Phthalate; Furaldehyde; Lignans; Magnetic Resonance Spectroscopy; Plant Roots; Plants, Medicinal; Ranunculus; Sitosterols; Stigmasterol