565-07-1Relevant articles and documents
New enzymatic methods for the synthesis of primary α-aminonitriles and unnatural α-amino acids by oxidative cyanation of primary amines with d-amino acid oxidase from porcine kidney
Kawahara, Nobuhiro,Yasukawa, Kazuyuki,Asano, Yasuhisa
supporting information, p. 418 - 424 (2017/08/14)
Oxidation of amino groups in amines or amino acids activates the sp3 Cα-H bond to form imines, making the alpha carbon atom a preferable target for nucleophilic reagents such as cyanide. Therefore, we focused on the oxidase reaction for the production of primary α-aminonitriles via imines. d-Amino acid oxidase from porcine kidney (pkDAO) and l-amino acid oxidase from Crotalus atrox catalyzed the synthesis of 2-amino-2-cyano-3-phenylpropanoic acid from phenylalanine and potassium cyanide (KCN). Mutant pkDAO (Y228L/R283G) catalyzed the synthesis of racemic-2-methyl-2-phenylglycinonitrile from (R)-α-methylbenzylamine and KCN. Based on these results, we developed a new cascade reaction for the synthesis of unnatural α-amino acids from primary amines using mutant pkDAO and nitrilase AY487533. This is the first report of the enzymatic synthesis of primary α-aminonitriles and unnatural α-amino acids. These methods will contribute widely to the synthesis of primary α-aminonitriles and unnatural α-amino acids in aqueous systems.
NOVE PHENYL/PYRIDINE SERIES SUBSTITUED BY HYDROXYETHYLAMINO FOR THE TREATMENT OF CANCER
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Page/Page column 68; 69, (2014/07/22)
The invention provides novel compounds having the general formula (I) wherein R1, R2, R3, R4, R5, R6, R7 and W are as described herein, compositions including the compounds and methods of using the compounds.
Intramolecular arylation of amino acid enolates
Atkinson, Rachel C.,Leonard, Daniel J.,Maury, Julien,Castagnolo, Daniele,Volz, Nicole,Clayden, Jonathan
supporting information, p. 9734 - 9736 (2013/10/21)
Dianionic enolates formed from N′-aryl urea derivatives of amino acids undergo intramolecular C-arylation by attack of the enolate anion on the N′-aryl ring, leading to a hydantoin derivative of a quaternary amino acid. In situ IR studies allow identification of four intermediates on the reaction pathway.