Multiwavelength Optical Rotation Detection: An Effective Approach for the Recognition of Analytical and Semi-Preparative HPLC Enantioseparation of the Chiral Pheromone Olean and Its Stereochemical Characterization.
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DOI: 10.1002/chir.70006
Abstract: Olean is the chiral spiroacetal sex pheromone of the female olive fruit fly Bactrocera oleae. Laboratory tests have demonstrated that the (R)-(-)-olean enantiomer is active on males, whereas females respond to (S)-(+)-olean. Here we present… read more here.
Keywords: hplc enantioseparation; rotation; semi preparative; optical rotation ... See more keywords
HPLC semi-preparative separation of diclazuril enantiomers and racemization in solution.
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DOI: 10.1002/jssc.201901201
Abstract: Diclazuril has been widely used in poultry feed for prevention and treatment of coccidiosis, and its chiral separation is rarely reported. Herein, semi-preparative separation method of diclazuril enantiomers has been developed through normal-phase HPLC. Effects of… read more here.
Keywords: diclazuril enantiomers; diclazuril; semi preparative; separation ... See more keywords
Semi-preparative HPLC purification of δ-tocotrienol (δ-T3) from Elaeis guineensis Jacq. and Bixa orellana L. and evaluation of its in vitro anticancer activity in human A375 melanoma cells
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DOI: 10.1080/14786419.2017.1320793
Abstract: Abstract In this work, we report a rapid and convenient HPLC-UV-DAD method for the isolation of δ-T3 on semi-preparative scale from two different vitamin E rich processed, commercially available products obtained from the fruits of… read more here.
Keywords: hplc; bixa orellana; guineensis jacq; elaeis guineensis ... See more keywords
Isolation and Purification of Kudinosides from Kuding Tea by Semi-Preparative HPLC Combined with MCI-GEL Resin
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DOI: 10.2174/1573411015666191031153352
Abstract: Kuding tea, a Traditional Chinese drink, has a history of thousands of years in China. Triterpenoid saponins in Kuding tea are regarded as one of the major functional ingredients. The aim of this paper was… read more here.
Keywords: triterpenoid saponins; kuding tea; mci gel; semi preparative ... See more keywords
Semi-Preparative Separation, Absolute Configuration, Stereochemical Stability and Effects on Human Neuronal Cells of MDPV Enantiomers
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DOI: 10.3390/molecules28052121
Abstract: Synthetic cathinones, such as 3,4-methylenedioxypyrovalerone (MDPV), are widely abused due to their psychostimulant effects. As they are chiral molecules, studies of their stereochemical stability (racemization can occur in certain temperatures and acidic/basic environments) and of… read more here.
Keywords: absolute configuration; semi preparative; mdpv enantiomers; stability ... See more keywords