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Evaluation of the use of mandelate derivatives to determine the enantiomeric purity and the absolute configuration of secondary cyclohexenols
(Arkat USA, 2011-03)
The use of mandelate derivatives to determine the enantiomeric purity and the absolute configuration of isomeric mixtures of bicyclic and monocyclic secondary cyclohexenols was investigated. Synthesis, NMR and conformational ...
Development and validation of a capillary electrophoresis method for determination of enantiomeric purity and related substances of esomeprazole in raw material and pellets
(Wiley VCH Verlag, 2014-03)
A capillary electrophoresis method using CDs for quality control of esomeprazole (ESO) in terms of enantiomeric purity and related substances in raw material and pellets was developed. ESO is the S-enantiomer of omeprazole ...
Limitations in determining enantiomeric excess of alcohols by P-31-NMR of the phosphonate derivatives
(Soc Brasileira QuimicaSao PauloBrasil, 1999)
Enantiomeric analysis of overlapped chromatographic profiles in the presence of interferences. Determination of ibuprofen in a pharmaceutical formulation containing homatropine
(Elsevier Science, 2016-10)
In this work, we studied the combination of chemometric methods with chromatographic separations as a strategy applied to the analysis of enantiomers when complete enantioseparation is difficult or requires long analysis ...
Enantiomeric analysis of overlapped chromatographic profiles in the presence of interferences. Determination of ibuprofen in a pharmaceutical formulation containing homatropine
(Elsevier Science, 2016-05)
In this work, we studied the combination of chemometric methods with chromatographic separations as a strategy applied to the analysis of enantiomers when complete enantioseparation is difficult or requires long analysis ...
First synthesis of (-)-neplanocin C
(Pergamon-Elsevier Science Ltd, 2000-06)
(-)-Neplanocin C (4), a minor component of the neplanocin family of antibiotics and a lead drug for the design of several conformationally constrained nucleosides analogues, was enantioselectively synthesized starting from ...
Enantiomeric Mixtures in Natural Product Chemistry: Separation and Absolute Configuration Assignment
(Mdpi, 2018)
Chiral natural product molecules are generally assumed to be biosynthesized in an enantiomerically pure or enriched fashion. Nevertheless, a significant amount of racemates or enantiomerically enriched mixtures has been ...
Isolamento, caracterização, quantificação e avaliação da pureza enantiomérica de linalol, carvona e limoneno em óleos essenciais de espécies aromáticasISOLATION, CHARACTERIZATION, AND EVALUATION OF MEASUREMENT ENANTIOMERIC PURITY OF LINALOOL, CARVONE AND LIMONENE IN ESSENTIAL OILS HERBS SPECIES.
(Universidade Federal de SergipePós-Graduação em QuímicaBRUFS, 2017)