Article: article from journal or magazin.
Complete LC/MS analysis of a Tinnevelli senna pod extract and subsequent isolation and identification of two new benzophenone glucosides.
Publication types: Journal Article ; Research Support, Non-U.S. Gov't Publication Status: ppublish
The hydroalcoholic extract of Tinnevelli senna is widely used as a laxative phytomedicine. In order to improve the knowledge of the chemical composition of this extract, LC/MS and LC/MS(n) studies were performed, allowing the on-line identification of most of the known constituents, i. e., flavonoids, anthraquinones and the typical dianthronic sennosides. However, the identity of four compounds could not be ascertained on-line under the given LC/MS conditions. These substances were isolated and their structures elucidated as kaempferol, the naphthalene derivative tinnevellin 8-glucoside and two new carboxylated benzophenone glucosides.
Benzophenones/chemistry, Benzophenones/isolation & purification, Chromatography, Liquid/methods, Flavonoids, Glucosides/chemistry, Glucosides/isolation & purification, Kaempferols, Mass Spectrometry/methods, Naphthalenes/chemistry, Naphthalenes/isolation & purification, Plant Structures/chemistry, Quercetin/analogs & derivatives, Quercetin/chemistry, Senna Extract/chemistry, Senna Extract/isolation & purification, Senna Plant
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