Biocatalytic preparation of a chiral synthon for a vasopeptidase inhibitor: enzymatic conversion of N2-[N-Phenylmethoxy)carbonyl] L-homocysteinyl]- L-lysine (1- > 1′)-disulfide to [4S-(4I,7I,10aJ)] 1-octahydro-5-oxo-4-[phenylmethoxy)carbonyl]amino]-7H-pyrido-[2,1-b] [1,3]thiazepine-7-carboxylic acid methyl ester by a novel L-lysine ϵ-aminotransferase

Abstract
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