摘要:
2S-[2-H-2]-Kynurenine has been synthesised by two different routes. Diacetylation/racemisation of racemic kynurenine in deuterium oxide followed by acylase catalysed resolution provides the most direct method, The alternative is to prepare 2S-[2-H-2]-tryptophan by a similar procedure and then convert this through to 2S-[2-H-2]-kynurenine via ozonolysis. Preliminary results on measurements of the primary deuterium isotope effect, and solvent isotope effect, are described. (C) 1997 Elsevier Science Ltd.