Six new triterpenoid glycosides called julibrosides A1-A4,B1 and C1 were isolated from Albizziae Cortex, the dried stem bark of Albizzia julibrissin DURAZZ. Their structures were determined based on spectral and chemical evidence. Julibrosides B1 and C1 had new sapogenols, designated julibrogenin B and C, respectively, while julibrosides A3 included N-acetyl-D-glucosamine as a sugar component.
N-acetyl-d-glucosamine, Leguminosae, oleanene glycoside, Albizziae Cortex, Albizzia julibrissin, oleanene sapogenol, julibrogenin, julibroside
Publication DOI: 10.1248/cpb.40.3269Journal NLM ID: 0377775WWW link: http://ci.nii.ac.jp/naid/110003629729Publisher: Pharmaceutical Society Of Japan
Institutions: School of Pharmaceutical Sciences, Showa University, Japan, Faculty of Pharmaceutical Sciences, Kumamoto University, Japan
Methods: 13C NMR, 1H NMR, EI-MS, gel filtration, IR, FAB-MS, TLC, methylation analysis, NaBH4 reduction, acetylation analysis, saponification
Found