Chemical constituents of Carissa edulis Vahl
Autor: | Hanan M. Al-Youssef, Wafaa H.B. Hassan |
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Jazyk: | angličtina |
Předmět: |
Chemistry(all)
Stereochemistry General Chemical Engineering Ethyl acetate 01 natural sciences Carissa edulis lcsh:Chemistry chemistry.chemical_compound Chlorogenic acid Flavonoids 010405 organic chemistry Butanol 3-O-acetyl chlorogenic acid General Chemistry Carbon-13 NMR Caredulis 0104 chemical sciences 010404 medicinal & biomolecular chemistry chemistry lcsh:QD1-999 Chemical constituents Chemical Engineering(all) Proton NMR Alkyl rhamnose Kaempferol |
Zdroj: | Arabian Journal of Chemistry, Vol 10, Iss 1, Pp 109-113 (2017) |
ISSN: | 1878-5352 |
DOI: | 10.1016/j.arabjc.2014.01.004 |
Popis: | Reinvestigation of the biologically active ethyl acetate and butanol extracts of the aerial parts of Carissa edulis afforded 3-O-acetyl chlorogenic acid (I), along with four known flavonol glucosides including, kaempferol 3-O-β- d glucopyranoside (II), quercetin-3-O-β- d glucopyranoside (III), rhamnetin-3-O-β- d glucopyranoside (IV) and isorhamnetin-3-O-β- d -glucopyranoside (V) from ethyl acetate fraction. Isorhamnetin-3-O-β- d -glucopyranoside-(2″→1″′)-rhamnopyranoside (VI), Caredulis, 1-{1-[2-(2 hydroxypropoxy) propoxy] propan-2-yloxy} propan-2-ol (VII) and (+) butyl-O-α- l -rhamnoside (VIII) were isolated from butanol fraction. Characterization of these compounds was achieved by various spectroscopic methods (UV, MS, 1H NMR, 13C NMR, COSY, HSQC and HMBC) and through comparison with published data. Compounds I–VIII were isolated from C. edulis for the first time, while compounds VII and VIII were isolated for the first time from nature. |
Databáze: | OpenAIRE |
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