Chemo-enzymatic synthesis of ethyl (R)-2-hydroxy-4-phenylbutyrate

Add time:08/29/2019    Source:sciencedirect.com

A new biocatalytic strategy to obtain the ethyl (R)-2-hydroxy-4-oxo-4-phenylbutyrate precursor of ethyl (R)-2-hydroxy-4-phenylbutyrate, an important intermediate in the synthesis of a variety of ACE inhibitors, has been set up. Starting from ethyl 2,4-dioxo-4-phenylbutyrate, a screen of microorganisms has been performed in order to find the best catalyst able to reduce the keto group in the α-position with high chemo- and enantioselectivity. The biotransformation catalyzed by Pichia pastoris CBS 704 gave the best results in terms of conversion and enantioselectivity. The addition of adsorbing resins in the fermentation medium is effective in controlling substrate and product concentration in the medium, thus improving both conversion and enantioselectivity of the biotransformation. Preliminary experiments in a continuous batch reactor with growing culture of P. pastoris will be also presented.

We also recommend Trading Suppliers and Manufacturers of ethyl 2-phenylbutyrate (cas 119-43-7). Pls Click Website Link as below: cas 119-43-7 suppliers

Prev:Carbon-silica composites supported Pt as catalyst for asymmetric hydrogenation of ethyl 2-oxo-4-phenylbutyrate
Next:Enantioselective synthesis of ethyl (S)-2-hydroxy-4-phenylbutyrate by recombinant diketoreductase)