Enantioselective potential of polysaccharide-based chiral stationary phases in supercritical fluid chromatography
作者:Gabriela Kucerova、Kveta Kalikova、Eva Tesarova
DOI:10.1002/chir.22701
日期:2017.6
cellulose‐based chiralstationaryphase were achieved particularly with propane‐2‐ol and a mixture of isopropylamine and trifluoroacetic acid as organic modifier and additive to CO2, respectively. Methanol and basic additive isopropylamine were preferred on amylose‐based chiralstationaryphase. The complementary enantioselectivity of the cellulose‐ and amylose‐based chiralstationaryphases allows separation
Colistin Sulfate Chiral Stationary Phase for the Enantioselective Separation of Pharmaceuticals Using Organic Polymer Monolithic Capillary Chromatography
and antiarrhythmic drugs. Acceptable separation was achieved for many drugs using reversed phase chromatographic conditions with no separation achieved under normal phase conditions. Colistin sulfate appears to be useful addition to the available macrocyclic antibiotic chiralphases used in liquid chromatography.
[EN] CHIRAL ARYLKETONES IN THE TREATEMENT OF NEUTROPHIL-DEPENDENT INFLAMMATORY DESEASES<br/>[FR] ARYLCETONES CHIRALES UTILISEES POUR TRAITER DES MALADIES INFLAMMATOIRES DEPENDANT DES NEUTROPHILES
申请人:DOMPE SPA
公开号:WO2004052830A1
公开(公告)日:2004-06-24
ABSTRACT The compounds of formula (I): where Ar is an aromatic ring and Ra, Rb, are as defined in the description, are useful in therapy as drugs for the treatment of diseases mediated by infiltrations of neutrophils induced by IL-8, such as psoriasis, rheumatoid arthritis, ulcerative cholitis and for the treatment of damages caused by ischemia and reperfusion.
Application of Cyclam-Capped β-Cyclodextrin-Bonded Silica Particles as a Chiral Stationary Phase in Capillary Electrochromatography for Enantiomeric Separations
作者:Yinhan Gong、Hian Kee Lee
DOI:10.1021/ac0204909
日期:2003.3.1
Two novel types of substituted cyclam-capped β-cyclodextrin (β-CD)-bonded silica particles have been prepared and used as chiral stationary phases in capillary electrochromatography (CEC). The two stationary phases have a chiral selector with three recognition sites: β-CD, cyclam, and the latter's sidearm. They exhibit excellent enantioselectivities in CEC for a wide range of compounds as a result of the cooperative functioning of the anchored β-CD and cyclam. After inclusion of the metal ion (Ni2+) from the running buffer into the substituted cyclams and their sidearm ligands, the bonded stationary phases become positively charged and can provide extra electrostatic interactions with ionizable solutes and enhance the dipolar interactions with some polar neutral solutes. This enhances the host−guest interaction with some solutes and improves chiral recognition and enantioselectivity. These new types of stationary phases exhibit great potential for fast chiral separations in CEC.
COMPOUNDS FOR THE TREATMENT OF SPINAL MUSCULAR ATROPHY AND OTHER USES
申请人:Heemskerk Jill
公开号:US20090312323A1
公开(公告)日:2009-12-17
Compounds of Formula (I) or (II) useful for the treatment of spinal muscular atrophy or other uses, as well as methods of using such compounds to increase SMN expression, increase EAAT2 expression, or increase the expression of a nucleic acid that encodes a translational stop codon introduced by mutation or frameshift.