New and efficient synthetic routes to 1-deoxy-D-xylulose
作者:José-Luis Giner
DOI:10.1016/s0040-4039(98)00310-4
日期:1998.4
1-deoxy-D-xylulose was synthesized by improved methods. D-Tartaric acid is the starting material for a synthesis which proceeds via the intermediacy of 2,3,4-tribenzyl-D-threitol. Another, highly efficientroute used the Sharpless asymmetric dihydroxylation of 5-benzyloxy-3-penten-2-one as its key step. These syntheses are especially useful for isotopic labeling.
<scp>D</scp>-Fructose-6-phosphate Aldolase in Organic Synthesis: Cascade Chemical-Enzymatic Preparation of Sugar-Related Polyhydroxylated Compounds
作者:Alda Lisa Concia、Carles Lozano、José A. Castillo、Teodor Parella、Jesús Joglar、Pere Clapés
DOI:10.1002/chem.200802532
日期:2009.4.6
D‐Fructose‐6‐phosphate aldolase (FSA) is a key biocatalyst for the alternative synthetic construction of biologically active products with known therapeutic and research interest or novel structures relevant to drug discovery. Novel aldol addition reactions of dihydroxyacetone and hydroxyacetone to a variety of aldehydes catalyzed by FSA are presented (see scheme).
Acyl palladium species in synthesis: single-step synthesis of α,β-unsaturated ketones from acid chlorides
作者:Russell J. Cox、Andrew S. Evitt
DOI:10.1039/b616582f
日期:——
Conditions are reported for the facile, one-pot synthesis of alpha,beta-unsaturated ketones via the palladium-catalysed cross-coupling of acylchlorides with hydrozirconated acetylenes, and its use in the 2-step synthesis of D-5-O-benzyl deoxyxylulose.
A short enantioselective synthesis of 1-deoxy-l-xylulose by antibody catalysis
作者:Doron Shabat、Benjamin List、Richard A. Lerner、Carlos F. Barbas
DOI:10.1016/s0040-4039(98)02699-9
日期:1999.2
A new efficientsynthesis of 1-deoxy-l-xylulose (1) is presented. The key step is achieved by a highly enantioselective aldol addition of hydroxyacetone to benzyloxyacetaldehyde via antibody catalysis. The synthesis described here should provide a convenientroute to isotopically labeled derivatives.
Structure-guided redesign of d-fructose-6-phosphate aldolase from E. coli: remarkable activity and selectivity towards acceptor substrates by two-point mutation
Structure-guided re-design of the acceptor binding site of D-fructose-6-phosphate aldolase from E. coli leads to the construction of FSA A129S/A165G double mutant with an activity between 5- to >900-fold higher than that of wild-type towards N-Cbz-aminoaldehyde derivatives.