ISSN:
0170-2041
Schlagwort(e):
Degradation, thermal
;
Thermolysis
;
Glycosides
;
Carbohydrates
;
Triterpenoids
;
Steroids
;
Chemistry
;
Organic Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
In this paper the hydrothermolysis of triterpenoid and steroid glycosides is described. By mere heating with water or water/1,4-dioxane solution, the triterpenoid and steroid glycosides 1, 4 and 15, 16, 25, 29, respectively, are converted into their aglycones and prosapogenins. Furthermore, hydrothermolysis of the triterpenoid 3,28-O-bisglycosides 5, 6, 8, 9, 12 affords the corresponding 3-O-glycosides and reduced oligosaccharides formed by selective cleavage of the ester glycosidic linkage. It is expected that this hydrothermolysis is useful for the structure determination of some triterpenoid and steroid glycosides and for yielding new oligosaccharides. The hydrothermolyzed products have been isolated by chromatography and their structures elucidated by spectroscopic methods.
Zusätzliches Material:
5 Tab.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/jlac.199219920181
Permalink
