Enantioselective Microbial Hydroxylation as a Useful Tool in the Production of Jasmonate Derivatives with Aphid Deterrent Activity
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Microbial transformations of two natural compounds dihydrojasmone (1) and cis-jasmone (3) in the growing cultures of selected twenty strains have been investigated. The studies have demonstrated a biocatalytic potential of tested microorganisms for the enantioselective hydroxylation of jasmonates. The substrates underwent an effective regio- and stero-selective hydroxylation at the allylic position in the cyclopentenone ring, and the corresponding optically pure keto-alcohols (2, 4) were obtained. The process of biohydroxylation depended on the composition of reaction medium. In the studied cultures, (+)-(R)-4-hydroxydihydrojasmone (2) and (+) and (−)-4-hydroxyjasmone (4a, 4b) were produced in good yields and high enantiomeric excesses. Moreover, the introduction of the hydroxy group into the molecule of jasmonate ketones 1 and 3 leads to biologically active derivatives 2 and 4 that regulate the behaviour of aphids Myzus persicae by termination of their feeding.
KeywordsBiotransformation Microbial Transformation Pyrethrin Preparative Scale Hydroxyketone
This Project was financed by the European Union from the European Regional Development Found Grant No. POIG.01.03.01-00-158/09-03.
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