Optically active valine complex and a method for producing the same
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United States of America Patent
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Sep 1, 2015
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Aug 14, 2014
filing date -
Aug 14, 2014
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Abstract
The present invention discloses an optically active complex of L-valine N-benzoyl-L-alanine, comprising one mole each of L-valine and N-benzoyl-L-alanine. N-benzoyl-L-alanine is found to react selectively with L-valine to form the novel crystalline complex even in the presence of D-valine, other amino acids, and impurities present in synthetic DL-valine and in the crude L-valine from the hydrolysis of protein and fermentation. The optically active L-valine N-benzoyl-L-alanine is used as an intermediate for the optical resolution of DL-valine and for the purification of L-valine.
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