Department

Chemistry

Advisor

James Christenson

Location

Bethel University

Document Type

Poster

Version

Preprint

Abstract

Beta-lactone synthetases are a class of enzymes which produce chiral beta-lactones, four-membered cyclic esters, from racemic beta-hydroxy acid substrates. Chiral beta-lactones are used as chemical synthons and as bioactive compounds, such as the FDA-approved drug, Orlistat. However, substrate specificity of stand-alone beta-lactone synthetases are poorly understood, and their use in chemoenzymatic synthesis of chiral bioactive compounds remains unexplored. This research focused on the organic synthesis of beta-hydroxy acids to probe the substrate specificity of this class of enzymes and to generate potentially bioactive compounds against essential tuberculosis enzymes. The beta-hydroxy acid 2-[(5-chlorofuran-2-yl)(hydroxy) methyl]hexanoic acid was synthesized from lithiated hexanoate and 5-chloro-2-furaldehyde under nitrogen gas, purified via liquid-liquid extraction, then characterized via 1H and 13C NMR.

Comments

beta-lactone, organic synthesis, antibiotics

Terms of Use and License Information

Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.

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May 11th, 1:30 PM

Synthesis of disubstituted β-hydroxy acids for the enzymatic synthesis of chiral β-lactones

Bethel University

Beta-lactone synthetases are a class of enzymes which produce chiral beta-lactones, four-membered cyclic esters, from racemic beta-hydroxy acid substrates. Chiral beta-lactones are used as chemical synthons and as bioactive compounds, such as the FDA-approved drug, Orlistat. However, substrate specificity of stand-alone beta-lactone synthetases are poorly understood, and their use in chemoenzymatic synthesis of chiral bioactive compounds remains unexplored. This research focused on the organic synthesis of beta-hydroxy acids to probe the substrate specificity of this class of enzymes and to generate potentially bioactive compounds against essential tuberculosis enzymes. The beta-hydroxy acid 2-[(5-chlorofuran-2-yl)(hydroxy) methyl]hexanoic acid was synthesized from lithiated hexanoate and 5-chloro-2-furaldehyde under nitrogen gas, purified via liquid-liquid extraction, then characterized via 1H and 13C NMR.

 

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