Components of the Ether-Insoluble Resin Glycoside Fraction from the Seed of Cuscuta australis
| Autor: | Ning-Yi Sun, Xiao-Ming Du, Toshio Kawasaki, Masatoshi Nishi, Yong-Tian Guo, Kazumoto Miyahara |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Stereochemistry
Carboxylic acid Molecular Sequence Data Pharmaceutical Science Ether Alkaline hydrolysis (body disposal) Analytical Chemistry Hydrolysis chemistry.chemical_compound Drug Discovery Organic chemistry Glycosides Trisaccharide Pharmacology chemistry.chemical_classification Organic Chemistry Glycoside Glycosidic bond Carbohydrate Sequence Complementary and alternative medicine chemistry Aldose Seeds Molecular Medicine Resins Plant Drugs Chinese Herbal |
| Zdroj: | Journal of Natural Products. 62:722-725 |
| ISSN: | 1520-6025 0163-3864 |
| DOI: | 10.1021/np980506j |
| Popis: | An ether-insoluble resin glycoside fraction was obtained from the seeds of Cuscuta australis. Identification and characterization of alkaline hydrolysis products by means of GC, FABMS, and 1H, 13C, and 2D NMR revealed the material to be composed of three new glycosidic acids, cuscutic acids A1-A3 (1-3); triglycosides with (11S)-jalapinolic or (11S)-convolvulinolic acid as the aglycon; and acetic, isobutyric, (2S)-2-methylbutyric, tiglic, and (2R,3R)-nilic acids. The resin glycoside is considered to be a complex mixture of glycosidic ester-type oligomers (up to heptamers) with a core consisting of a number of the above cuscutic acids each acylated with one or two carboxylic acid moieties. |
| Databáze: | OpenAIRE |
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