Abstract
A non-aqueous capillary electrophoretic method developed for the enantioseparation of N-protected amino acids has been applied to the investigation of five new quinine and quinidine derivatives as chiral selectors: 1-adamantyl carbamoylated quinine, 3,4-dichlorophenyl carbamoylated quinidine, allyl carbamoylated dihydroquinine, allyl carbamoylated dihydroquinidine and 1-methyl quininium iodide. The composition of the background electrolyte was 12.5 m M ammonia, 100 m M octanoic acid in an ethanol–methanol (60:40 v/v) mixture containing a 10 m M concentration of the chiral selector. Under these conditions, the enantioseparation of a series of various benzoyl, 3,5-dinitrobenzoyl and 3,5-dinitrobenzyloxycarbonyl amino acid derivatives was studied with respect to selectand–selector relationship and enantioselectivity.
Published Version
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