• biphasic recognition chiral extraction — novel way of separating pantoprazole enantiomers

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 952
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     this paper presents a biphasic recognition chiral extraction system developed as a new chiral separation technology for the separation of pantoprazole enantiomers, combining a hydrophilic β-cd derivative in the aqueous phase and a hydrophobic tartaric acid in the organic phase which preferentially recognise the (r)-enantiomer and (s)-enantiomer, respectively. in this study, a number of factors which influence the efficiency of the extraction were investigated including types of organic solvents, β-cd and tartaric acid esters and their concentrations, ph and temperature. as a result, enantioselectivity for pantoprazole enantiomers can be improved up to 1.42 under optimised conditions; in addition, it is clear that the combined action of β-cd and tartaric acid esters leads to formation of the biphasic chiral extraction system with a stronger separation capacity than a monophasic chiral extraction system.

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