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Preparation of 15N-labeled l-alanine by immobilized l-alanine dehydrogenase: Differential incorporation of 15N in bacterial proteins

✍ Scribed by Elena Presecan; Antipa Ivanof; Aurel Mocanu; Nicolae Palibroda; Margareta Bologa; Victoria Gorun; Monica Oargǎ; Octavian Bârzu

Book ID
103524975
Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
527 KB
Volume
9
Category
Article
ISSN
0141-0229

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Using 1 -chloro-l-[~~N]nitrosocyclohexane, we have prepared five L-[a-'SN]arnino acids. The stereoselective electophillic hydroxyamination of (S)-acylbornane-l0,2-suftams, followed by ZnO/H+ reduction, and alkaline cleavage of the chiral auxiliary, gave the amino acids in 97.2-99.5 % e.e. By starti