Biocatalytic preparation of 1-cyanocyclohexaneacetic acid

C - Chemistry – Metallurgy – 12 – P

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C12P 7/40 (2006.01)

Patent

CA 2528388

The present invention is directed to novel biocatalytic processes for the conversion of aliphatic cc, w-dinitriles into the corresponding co- nitrilecarboxylic acid. More particularly, the present invention provides a method for the conversion of 1-cyanocyclohexaneacetonitrile to 1- cyanocyclohexaneacetic acid using an enzyme catalyst with nitrilase activity. 1~cyanocyclohexaneacetic acid is a useful intermediate in the synthesis of gabapentin.

La présente invention concerne de nouveaux procédés biocatalytiques permettant la conversion d'.alpha., .omega.-dinitriles aliphatiques en l'acide .omega.-nitrile carboxylique correspondant. Plus particulièrement, la présente invention concerne un procédé pour la conversion de 1-cyanocyclohexaneacétonitrile en acide 1-cyanocyclohexane acétique à l'aide d'un catalyseur enzymatique à activité nitrilase. L'acide 1-cyanocyclohexane acétique est un intermédiaire utile dans la synthèse de la gabapentine.

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