Liquid chromatographic retention behavior and enantiomeric separation of three chiral center ?-blocker drug (nadolol) using heptakis (6-azido-6-deoxy-2, 3-di-O-phenylcarbamolyted) ?-cyclodextrin bonded chiral stationary phase

Chirality ◽  
2002 ◽  
Vol 14 (10) ◽  
pp. 798-805 ◽  
Author(s):  
Xin Wang ◽  
Chi Bun Ching
1987 ◽  
Vol 23 (10) ◽  
pp. 727-730 ◽  
Author(s):  
K. Iwaki ◽  
S. Yoshida ◽  
N. Nimura ◽  
T. Kinoshita ◽  
K. Takeda ◽  
...  

2021 ◽  
Vol 14 (2) ◽  
pp. 98
Author(s):  
Ratih Ratih ◽  
Hermann Wätzig ◽  
Azminah Azminah ◽  
Mufarreh Asmari ◽  
Benjamin Peters ◽  
...  

Chondroitin sulfate A was covalently immobilized onto a monolithic silica epoxy column involving a Schiff base formation in the presence of ethylenediamine as a spacer and evaluated in terms of its selectivity in enantioseparation. The obtained column was utilized as a chiral stationary phase in enantioseparation of amlodipine and verapamil using a mobile phase consisting of 50 mM phosphate buffer pH 3.5 and UV detection. Sample dilution by organic solvents (preferably 25% v/v acetonitrile-aqueous solution) was applied to achieve baseline enantioresolution (Rs > 3.0) of the individual drug models within 7 min, an excellent linearity (R2 = 0.999) and an interday repeatability of 1.1% to 1.8% RSD. The performance of the immobilized column for quantification of racemate in commercial tablets showed a recovery of 86–98% from tablet matrices. Computational modeling by molecular docking was employed to investigate the feasible complexes between enantiomers and the chiral selector.


2007 ◽  
Vol 2 ◽  
pp. 117739010700200
Author(s):  
Ashraf Ghanem

Chirasil-β-Dex containing an undecamethylene spacer (C11-Chirasil-Dex) was synthesized and used as chiral stationary phase (CSP) in enantioselective gas chromatography (GC). The versatility of the new stationary phase in the simultaneous enantiomeric separation of a set of N-alkylated barbiturates is demonstrated.


2018 ◽  
Vol 42 (14) ◽  
pp. 11724-11731 ◽  
Author(s):  
Meng Li ◽  
Bo Zhang ◽  
Jia Yu ◽  
Jian Wang ◽  
Xingjie Guo

Enantiomeric separation process of anticholinergic drugs and chiral recognition mechanisms on Chiralpak ID column.


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