Enzymatic Synthesis of L-Pipecolic Acid by Δ¹-Piperideine-2-carboxylate Reductase from Pseudomonas putida

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L-Pipecolic acid is a chiral pharmaceutical intermediate. An enzymatic system for the synthesis of L-pipecolic acid from L-lysine by commercial L-lysine α-oxidase from Trichoderma viride and an extract of recombinant Escherichia coli cells coexpressing Δ¹-piperideine-2-carboxylate reductase from Pseudomonas putida and glucose dehydrogenase from Bacillus subtilis is described. A laboratory-scale process provided 27 g/l of L-pipecolic acid in 99.7% e.e.