Process for preparing optically active beta-aminocarboxylic...

C - Chemistry – Metallurgy – 12 – P

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C12P 41/00 (2006.01) C12N 9/80 (2006.01)

Patent

CA 2480301

A process is described for preparing optically active .beta.-aminocarboxylic acids from racemic N-acylated .beta.-aminocarboxylic acids by enantioselective hydrolysis of the N-acylated .beta.-aminocarboxylic acid in the presence of a hydrolase by way of biocatalyst, wherein the N-acyl substituent of the N- acylated .beta.-aminocarboxylic acid (I) exhibits Structure I in which R1, R2 are each selected, independently of one another, from H, halogen, alkyl residues, OH, alkoxy residues and aryloxy residues; R3 is selected from halogen, alkoxy residues and aryloxy residues; (II) Structure IIA or IIB or the structure of the corresponding salts or (III) Structure III or the structure of the corresponding salt.

La présente invention concerne un procédé de préparation d'acides .beta.-aminocarboxyliques optiquement actifs à partir d'acides .beta.-aminocarboxyliques N-acylés racémiques par hydrolyse énantiosélective de l'acide .beta.-aminocarboxylique N-acylé en présence d'une hydrolase au moyen d'un catalyseur, le substituant N-acyle de l'acide .beta.-aminocarboxylique N-acylé présentant (I) une structure I dans laquelle R?1¿, R?2¿ sont chacun sélectionnés, indépendamment l'un de l'autre, dans H, halogène, résidus alkyles, OH, résidus alcoxy et résidus aryloxy; R?3¿ étant sélectionné dans halogène, résidus alcoxy et résidus aryloxy; (II) une structure IIA ou IIB ou la structure des sels correspondants ou (III) une structure III ou la structure du sel correspondant.

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