X-ray crystallographic experiments,and ECD analyses.Compounds 1 a/1 b,2 a/2 b,3 b,4 a/4 b,and 5 a/5 b were new meroterpenoids with different polycyclic systems.Two enantiomeric pairs(2 a/2 b and 3 a/3 b),6,and 7 exhibited inhibitory effects on protein tyrosine phosphatase 1 B(...
Enantiomeric pairs are ideal for use in systematic hapten structure-activity studies, because the two enantiomers have identical physical properties in achiral environments. CHEMISTRY AND CHEMICAL ENGINEERING Enantioselective-gas chromatography (Es-GC) analysis using cyclodextrins as chiral selectors has been ...
摘要: This presentation will focus on our recent progress in purifying enantiomeric pairs of DNA-wrapped carbon nanotubes (DNA-CNTs) via the aqueous two-phase extraction method. We will also discuss a potential application of enantiomeric pairs of DNA-CNTs in bilateral chiral sensing....
Interaction of enantiomeric pairs of opiates with phencyclidine binding sites in rat brain: identification of (+) pentazocine as a ligand potentially suitable... RB Rothman,V Bykov,AH Newman,... 被引量: 0发表: 1988年 Enantiomeric N-substituted N-normetazocines: A comparative study of affinities...
Despite the small size and conserved tertiary structure of defensins, little is known at a molecular level about the basis of their functional versatility. For insight into the mechanism(s) of defensin function, we prepared enantiomeric pairs of four human defensins, HNP1, HNP4, HD5, and HBD...
In the medical field, there are stereoisomers pairs, one of which is a useful medication and the other does nothing, and the production of the active stereoisomer may involve using a specific enantiomer, so they want as large of an enantiomeric excess as possible. How do you calculate ...
Interaction of enantiomeric pairs of opiates with phencyclidine binding sites in rat brain: identification of (+) pentazocine as a ligand potentially suita... Interaction of enantiomeric pairs of opiates with phencyclidine binding sites in rat brain: identification of (+) pentazocine as a ligand ...
Eight pairs of enantiomeric neolignans, norlignans and sesquineolignans (1a/1b–8a/8b), together with five known neolignans (9a/9b and 10–12), have been isolated from 70% acetone extract of the whole plants of Phyllanthus glaucus Wall. (Euphorbiaceae). The racemic or partial racemic mixtures...
Using these enantiomeric probe pairs, or 'enantioprobes', we identify numerous stereoselective protein–fragment interactions in cells and show that these interactions occur at functional sites on proteins from diverse classes. Our findings thus indicate that incorporating chirality into fully functionalized...
Equimolar mixtures of quasienantiomeric pairs of these complexes exhibited a clear tendency to pack as quasiracemates as was revealed from the crystallographic structures of [( R,R )-1-Zn](PF6)2/[( S,S )-1-Fe](PF6)2 and [( R,R )-1-Zn](PF6)2/[( S,S )-1-Cd](PF6)2, in ...