Aldolases are key biocatalysts for stereoselective C-C bond formation allowing access to polyoxygenated chiral units through direct, efficient, and sustainable synthetic processes. Aldol reaction involving unprotected hydroxypyruvate and an aldehyde...
Substrate Specificity and Stereoselectivity of Two <i>Sulfolobus</i>
2-Keto-3-deoxygluconate Aldolases towards Azido-Substituted Aldehydes
作者:Marloes Schurink、Suzanne Wolterink-van Loo、John van der Oost、Theo Sonke、Maurice C. R. Franssen
DOI:10.1002/cctc.201300785
日期:2014.4
their natural reaction. However, if a set of azido‐functionalized aldehydes were applied as alternative acceptors in the reaction with pyruvate, the stereoselectivity was strongly increased to give enantiomeric or diastereomeric excess values up to 97 %. The Sulfolobus acidocaldarius KDGA displayed a higher stereoselectivity than Sulfolobus solfataricus KDGA for all tested reactions. The azido‐containing
Engineering stereocontrol into an aldolase-catalysed reaction
作者:Henry J. Lamble、Michael J. Danson、David W. Hough、Steven D. Bull
DOI:10.1039/b413255f
日期:——
A novel thermostable aldolase has been developed for synthetic application, and substrate engineering has been used to induce stereocontrol into aldol reactions of this naturally-promiscuous enzyme.
Aldolases catalyze the reversible reactions of aldol condensation and cleavage and have strong potential for the synthesis of chiral compounds, widely used in pharmaceuticals. Here, we investigated a new Class II metal aldolase from the p-hydroxyphenylacetate degradationpathway in Acinetobacter baumannii, 4-hydroxy-2-keto-heptane-1,7-dioate aldolase (AbHpaI), which has various properties suitable
Synthesis and properties of 3,6-dideoxyhexulosonic acids and related compounds
作者:D. Portsmouth
DOI:10.1016/s0008-6215(00)80155-x
日期:1968.10
Abstract Synthesis and characterizatio of the epimeric 3,6-dideoxy- d (and l )-hexulosonic acids are described. The configuration of each epimer has been established by measurements of rate of periodate oxidation, and each assignment agrees with that determined by enzyme-specificity studies. The n.m.r. spectra of the epimeric 3,6-dideoxy-hexulosonic acids and that of 3-deoxy- dl -glycero-pentulosonic