115827-18-4Relevant articles and documents
3-Amino-2-hydroxy-propionaldehyde and 3-amino-1-hydroxypropan-2-one derivatives: New classes of aminopeptidase inhibitors
Tarnus, Celine,Remy, Jean-Marc,D'Orchymont, Hugues
, p. 1287 - 1297 (2007/10/03)
3-Amino-2-hydroxy-propionaldehydes [H2NCH(R)CHOHCHO with R = H, i-Bu, CH2Ph] were designed as metalloaminopeptidase inhibitors based on the metal active site chelation concept. These compounds were found to be micromolar inhibitors of aminopeptidase-M (AP-M, EC 3.4.11.2) with potencies similar to bestatin (K(i) = 3.5 μM). Notably, compound 5a (R = H) is a selective inhibitor of AP-M (K(i) = 7 μM) with respect to cytosolic leucine aminopeptidase (LAPc, EC 3.4.11.1) (K(i) = 385 μM). However, due to their easy oligomerization, these compounds are of low practical value. In contrast, the corresponding isomeric 3-amino-1-hydroxy-propan-2-one derivatives [H2NCH(R)COCH2OH with R = H, i-Bu, CH2Ph, i-Pr, CH2Biph] are well defined structures. These hydroxymethylketones also exhibit micromolar affinities on AP-M. Compound 6c (R = CH2Ph) was the most potent (K(i) = 1 μM). Selectivity studies of 6a (R = H) and 6b (R = i-Bu) show a preference for AP-M. Compound 6a is moderately active on AP-M (K(i) = 25 μM) and inactive on LAPc. This new class of inhibitors is proposed to bind as bidentates, analogous to hydroxamates.
3-azido compound
-
, (2008/06/13)
A new and practical method for synthesizing heterocyclic polyhydroxylated alkaloids using enzymatic aldol condensation and catalytic intramolecular reductive amination is disclosed.
Fructose 1,6-Diphosphate Aldolase Catalyzed Stereoselective Synthesis of C-Alkyl and N-Containing Sugars: Thermodynamically Controlled C-C Bond Formations.
Durrwachter, John R.,Wong, Chi-Huey
, p. 4175 - 4181 (2007/10/02)
Fructose 1,6-diphosphate aldolase catalyzed aldol condensations have been used in syntheses of several new N-containing and C-alkyl sugars on 4-20 mmol scales.The enzyme is highly specific for dihydroxyacetone phosphate as donor but accepts a number of achiral and chiral aldehydes (both D and L isomers) as acceptors.Due to the reversible nature of the aldol reaction, a thermodynamically controlled approach was employed for the syntheses in which racemic aldehydes were used as substrates and thermodynamically more stable products were preferentially produced.