The synthesis of 2S-[2-H-2]-kynurenine is described using two different routes. Diacetylation/racemisation of racemic kynurenine in deuterium oxide followed by acylase catalysed resolution is the most direct route. 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. Copyright (C) 1996 Elsevier Science Ltd
Synthesis of 2S-[2-2H]-kynurenine and use in kinetic isotope effect studies with kynureninase
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.