Confirmation of the Absolute (3R,3′S,6′R)-Configuration of (all-E)-3′-Epilutein

Autor:	Ferenc Zsila, Gyula Tóth, Miklós Simonyi, Erzsebet Osz, József Deli, Péter Molnár
Rok vydání:	2004
Předmět:	Inorganic Chemistry Circular dichroism Stereochemistry Chemistry Organic Chemistry Drug Discovery Absolute configuration Analytical chemistry 3'-epilutein Physical and Theoretical Chemistry Spectroscopy Biochemistry Catalysis
Zdroj:	Helvetica Chimica Acta. 87:2159-2168
ISSN:	1522-2675 0018-019X
DOI:	10.1002/hlca.200490195
Popis:	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.
Databáze:	OpenAIRE
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