ISSN:
0170-2041
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Chemistry and Stereochemistry of Iridoids, V. - Crystal and Molecular Structure of Hexaacetylleonuride - Stereochemical Correlations of Some Iridoid GlucosidesLeonuride (ajugol, 1a) and myoporoside (2) are C-6 epimers, the configurations of which are specified differently in the literature. By X-ray structure analysis of hexaacetylleonuride (1d) the absolute configuration of leonuride (1a) is fixed, to which the configurations of catalpol (3a), antirrhinoside (6a), and harpagide (7a) as well as procumbide (14a) and 6-epi-harpagide (15a) are linked by chemical correlation.
Notes:
Leonurid (Ajugol, 1a) und Myoporosid (2) sind C-6-Epimere, deren Konfigurationen in der Literatur verschieden angegeben werden. Durch Röntgenstrukturanalyse des Hexaacetylleonurids (1d) wird die absolute Konfiguration von Leonurid (1a) festgelegt, an die durch chemische Korrelation die Konfigurationen von Catalpol (3a), von Antirrhinosid (6a) und Harpagid (7a) sowie von Procumbid (14a) und 6-epi-Harpagid (15a) angeschlossen werden.
Additional Material:
7 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.198519850519
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