Archives of Pharmacal Research

  • 제29권1호
  • /
  • Pages.108-111
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  • 2006
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  • 0253-6269(pISSN)
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  • 1976-3786(eISSN)
대한약학회 (The Pharmaceutical Society of Korea)
권호 표지

Preparative Method of R-(-)-Ibuprofen by Diastereomer Crystallization

  • 발행 : 2006.01.01
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초록

The economic and effective method for preparation of R-(-)-ibuprofen by diastereomer crystallization was developed. R-(-)-ibuprofen was resolved from racemic ibuprofen by forming R-(-)ibuprofen-R-(+)-$\alpha$-methylbenzylamine diastereomeric salt with R-(+)-$\alpha$-methylbenzylamine and crystallization. The purity of R-(-)-ibuprofen-R-(+)-$\alpha$-methylbenzylamine diastereomeric salt was tested and confirmed using HPLC and $^1H-NMR$ method. The pure diastereomeric salt collected from repeated recrystallization was further fractionated by liquid-liquid extraction to the pure enantiomer without racemization. R-(-)-ibuprofen was recovered producing overall yield of 2.4% with the purity more than 99.97%.

키워드

참고문헌

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