Liquid Chromatographic Resolution of Tocainide and Its Analogues on a Doubly Tethered Chiral Stationary Phase Based on (+)-(18-Crown-6)-2,3,11,12-tetracarboxylic Acid
作者:Hee-Jin Kim、Hee-Jung Choi、Myung-Ho Hyun
DOI:10.5012/bkcs.2010.31.03.678
日期:2010.3.20
A doubly tethered chiralstationaryphase (CSP) based on (+)-(18-crown-6)-2,3,11,12-tetracarboxylicacid were appli- ed to the liquidchromatographic resolution of racemic tocainide, an antiarrhythmic agent, and its analogues. The chiral recognition efficiency of the doubly tethered CSP for tocainide and its analogues was generally greater than that of the corresponding singly tethered CSP especially
Synthesis and bioactivities of new N-terminal dipeptide mimetics with aromatic amide moiety: Broad-spectrum antibacterial activity and high antineoplastic activity
develop new antibacterial agents with broad-spectrum antibacterialactivity and high selectivity. Here, a series of N-terminal dipeptide mimetics with an aromatic amide moiety were synthesized from amino acids. The effects of amino acid type and aromatic moiety on the biological activities of the mimetics were evaluated. The dipeptide mimetics not only showed significant broad-spectrum antibacterial activity
We evaluated the adsorbability and selectivity of (S)-valine anilide imprinted molecularly imprinted polymer (MIP) using a batch procedure that is both independent and precise. This study revealed important information about the relationship between the performance of MIPs and experimental factors such as the components of MIP synthesis and a reaction solvent. Herein, we also describe the problems associated with the preparation of a “non-imprinted polymer,” which is often used to evaluate the effect of a template molecule, and we propose a new type of reference polymer, “blank polymer.”