diastereomer

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diastereomer

[¦dī·ə¦ster·ē′ō·mər]
(organic chemistry)
References in periodicals archive ?
In the following figure (4A and B), the distinct cypermethrin diastereomeric patterns of a commercial product and a spruce bark extract, which involved exposure to the same technical formulation (exposure after 6 weeks) are presented.
(97) As shown in Scheme 19, the terminal methyl groups of the diastereomeric Mosher esters (S,R)- and (S,S)-26, derived from [gamma]-chiral alkanol (S)-21, showed completely separate [sup.1]H NMR signals.
Knowles the final structure cannot be predicted theoritically due to the small difference of energy (-2kcal/mol for 95% ee) between two diastereomeric transition states [4].
Presented here is the enantiomeric and diastereomeric separations of tour fragrance compounds using ACQUITY [UPC.sup.2] Trefoil AMY 1 and CEL1 columns on a Waters ACQUITY [UPC.sup.2] System.
Muck et al., "High-performance liquid chromatography and capillary electrophoresis of L- and Dcarnitine by precolumn diastereomeric derivatization," Journal of Chromatography B: Biomedical Applications, vol.
Pannecoucke, "Diastereomeric fluoroolefins as peptide bond mimics prepared by asymmetric reductive amination of [alpha]-fluoroenones," Angewandte Chemie: International Edition, vol.
Sahl, "In vitro activity and mode of action of diastereomeric antimicrobial peptides against bacterial clinical isolates," Journal of Antimicrobial Chemotherapy, vol.
Kita, "Determination of absolute configuration of trans-2-arylcyclohexanols using remarkable aryl-induced 'H NMR shifts in diastereomeric derivatives," Tetrahedron Letters, vol.
This patent generally relates to the composition of matter of PSI-7977 and its diastereomeric mixture for the treatment of hepatitis C virus (HCV), added the company.
In addition we plan to determine the ratio of enantiomeric and diastereomeric alcohols produced by these reductions.
The addition of nitroethane to benzaldehyde, thiophene-2-carboxaldehyde, and furan-2-carboxaldehyde was also investigated, and good yields of diastereomeric mixtures of the nitroalcohols were obtained.
Appellee's own prior patent application disclosed the separation of the isomers that, along with ramipril, were produced during the synthesis, stating that "[w]hen diastereomeric products result from the synthetic procedures, the diastereomeric products can be separated by conventional chromatographic ...