ABSTRACT
OBJECTIVE: To further reveal the chemical constituents of Polypodium hastatum, volatile components from this plant were investigated. METHODS: The volatile components were extracted under reflux from the whole plant of Polypodium hastatum, and then analyzed qualitatively and quantitatively by GC-MS. RESULTS: 60 volatile components were detected and of all components detected, the structures and relative contents of 34 volatile compounds were elucidated. CONCLUSION: In the volatile components identified, most are fatty acid esters, especially methyl and ethyl esters, which compose the major volatile chemical constituents of Polypodium hastatum.
Subject(s)
Oils, Volatile/chemistry , Plant Oils/chemistry , Polypodium/chemistry , Fatty Acids , Gas Chromatography-Mass SpectrometryABSTRACT
OBJECTIVE: To investigate the chemical constituents of Kalopanax septemlobus. METHODS: Chromatographic techniques including silica gel, gel, semi-preparative HPLC and PTLC as well as recrystallization were employed in the isolation and purification, and the structures were elucidated by spectral analysis and physical and chemical properties. RESULTS: 6 compounds were identified as liriodendrin (1), (-) -syringarenol (2), trans-coniferyl aldehyde (3), trans-caffeic acid (4), beta-daucosterol (5), beta-sitosterol (6). CONCLUSION: Compounds 2 -5 are obtained from this genus for the first time.
Subject(s)
Aldehydes/isolation & purification , Furans/isolation & purification , Kalopanax/chemistry , Lignans/isolation & purification , Plant Roots/chemistry , Acrolein/analogs & derivatives , Aldehydes/chemistry , Caffeic Acids/chemistry , Caffeic Acids/isolation & purification , Furans/chemistry , Lignans/chemistry , Molecular Structure , Plant Bark/chemistry , Plants, Medicinal/chemistry , Sitosterols/chemistry , Sitosterols/isolation & purificationABSTRACT
OBJECTIVE: To study the chemical constituents of Wikstroemia indica. METHODS: The constituents were isolated and purified by silica gel chromatography repeatedly, and the structures were determined by spectral data and chemical envidance. RESULTS: Six compounds were isolated from its petroleum ether, dichloromethane, acetone and methanol extracts and identified as: daphnoretin-7-O-beta-D-glucoside (1), aloe-emodin (2), kaempferol (3), 29-nonacosanolide (4), 1-octadecanol (5), beta-sitosterol (6). CONCLUSION: Compounds 2, 4, 5 are isolated from this plant for the first time.