cytellin and behenic-acid

To study the chemical constituents of Phellinus lonicerinus.. The constituents were seperated and purified by silica column chromatography, Sephadex LH-20 and other column chromatography, then their structures were identified by spectral methods.. Six compounds were isolated and identified as ergosta-6,22-dien-3beta, 5beta, 8beta-triol (1), erogosterol (2), vanillin (3), 3,4-dihydroxy benzalacetone (4), beta-sitosterol (5), docosanoic acid (6).. All compounds are isolated from Phellinus lonicerinus for the first time and compound 4 isa new natural product.

Topics: Benzaldehydes; Caffeic Acids; Ergosterol; Fatty Acids; Fruiting Bodies, Fungal; Magnetic Resonance Spectroscopy; Molecular Structure; Polyporaceae; Sitosterols

Eight components were isolated and purified from the ethereal extract from cultivar Aralia cordata Thumb. By means of UV, IR, 1H-NMR, 13CNMR, they were identified as (I) kaur-16-en-19-oic acid, (II) docosanoic, (III) hexadecanoic acid, (V) stigmasterol, (V) 16-formyl-kaur-15-en-19-oic acid, (VI) 7-oxo-ent-pimara-8 (14), 15-dien-19-oic acid, (VII) 17-Hydroxy-ent-kaur-15-en-19-oic acid, (VlII) sitosterol. Among them, components II, III, V were isolated from the gunus of Aralia for the first time.

Topics: Aralia; Diterpenes; Fatty Acids; Molecular Weight; Palmitic Acid; Plant Roots; Plants, Medicinal; Sitosterols; Stigmasterol

To study the chemical constituents of Alpinia jianganfeng (Zingiberaceae) distributed in Sichuan province.. Chromatography and spectral analyses were used to isolate the constituents and elucidate their structure.. Four compounds were isolated from the rhizome of A. jianganfeng and elucidated as kaempferol-3-O-glucuronide(1), docosanoic acid(2), 3-hydroxy-stigmast-5-en-7-one(3) and beta-sitosterol(4).. All these compounds were obtained from this plant for the first time.

Topics: Alpinia; Fatty Acids; Plants, Medicinal; Rhizome; Sitosterols