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- Title
Confirmation of the Absolute (3R,3′S,6′R)-Configuration of (all-E)-3′-Epilutein.
- Authors
Péter Molnár; József Deli; Erzsébet Ősz; Ferenc Zsila; Miklós Simonyi; Gyula Tóth
- Abstract
Circular dichroism (CD) spectroscopy was used to distinguish between the isomeric (all-E)-configured 3′-epilutein (2) and 6′-epilutein (8) to establish the absolute configuration of epilutein samples of different (natural and semisynthetic) origin, including samples of 2 obtained from thermally processed sorrel. Thus, the CD data of lutein (1) and epilutein samples (2) were compared. Our results unambiguously confirmed the (3R,3′S,6′R)-configuration of all epilutein samples. Compound 2 was thoroughly characterized, and its 13C-NMR data are published herewith for the first time.
- Publication
Helvetica Chimica Acta, 2004, Vol 87, Issue 8, p2159
- ISSN
0018-019X
- Publication type
Article