title: A new triglucosylated naphthalene glycoside from Aloe vera L.
abstract: A new triglucosylated naphthalene derivative, named aloveroside A (1), together with two known anthraquinone dimers and two 6-phenyl-2-pyrone derivatives, was isolated from the Aloe vera ethanolic extracts. The structure of 1 was established as 1-(((4-(1-O-beta-D-glucopyranosyl -(1-->4)-beta-D-xylopyranoside)-hydroxymethyl)-1-hydroxy-8-O-alpha-L-rhamnopyranoside)naphthalene-2-yl)-ethanone by means of spectroscopic evidences and chemical methods. All these compounds were tested for their BACE inhibitory activity but no significant activities were found.
authors.affiliation: Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education and Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, PR China.
authors.forename: Qing-Yun
authors.initials: QY
authors.lastname: Yang
authors.forename: Chun-Suo
authors.initials: CS
authors.lastname: Yao
authors.forename: Wei-Shuo
authors.initials: WS
authors.lastname: Fang
mesh_terms: D000504:Aloe / Q000737:chemistry*; D053829:Amyloid Precursor Protein Secretases / Q000037:antagonists & inhibitors; D004353:Drug Evaluation, Preclinical; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D015394:Molecular Structure; D009281:Naphthalenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology
chemical_list: D006027:Glycosides; D009281:Naphthalenes; D010936:Plant Extracts; C546923:aloveroside A; D053829:Amyloid Precursor Protein Secretases