Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1997-04-04
1998-07-14
Shippen, Michael L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
C07C22900
Patent
active
057806772
ABSTRACT:
N-chloroacetylglutamine is produced by reacting chloroacetyl chloride with an alkaline aqueous solution of glutamine the presence of a water-immiscible organic solvent, separating an aqueous layer by liquid-liquid separation, and crystallizing N-chloroacetyl-glutamine from the aqueous layer under acidic conditions. N-Chloroacetyl-glutamine useful as an intermediate for producing glycyl-L-glutamine which has higher stability than L-glutamine and is used as a component of an infusion solution can be obtained with high efficiency at low cost.
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Hoppe-Seyler's Z. Physiol. Chem., 105, 58 (1919), Thierfelder et al.
J. National Cancer Inst., 7, 275 (1947), "Studies on the Effect of Pyruvate on the Desamidation et al" Price et al pp. 275-279.
Aust. J. Chem., 7, 173 (1954).
Amatsu Kazumi
Kasai Masaji
Mizutaki Shoichi
Mori Yoshikazu
Tomioka Shinji
Kyowa Hakko Kogyo Co. Ltd.
Shippen Michael L.
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