Mesylates or tosylates of delta-hydroxy-L-norvaline esters spontaneously afford L-proline esters upon exposure to aqueous buffer in near quantitative yield. This novel reaction has led to the development of a simple route to optically active proline esters.
Enantiomeric purity determination of L-proline benzyl ester by chiral column gas chromatography.
M Jemal et al.
Journal of chromatography, 392, 442-446 (1987-04-17)
Applied and environmental microbiology, 76(18), 6180-6185 (2010-08-03)
We specifically examined an exopeptidase, prolyl aminopeptidase (PAP), as a target for synthesis of proline-containing peptides. A PAP from Streptomyces thermoluteus subsp. fuscus NBRC14270 (PAP14270) was obtained using sequence-based screening. From PAP14270, 144Ser was replaced by Cys (scPAP14270) to give
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