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纤维素三(4-甲基苯甲酸酯)对 C5-手性 4,5-二氢-(1H)-吡唑衍生物的异常对映选择性的色谱研究。

A chromatographic study on the exceptional enantioselectivity of cellulose tris(4-methylbenzoate) towards C5-chiral 4,5-dihydro-(1H)-pyrazole derivatives.

机构信息

Istituto Superiore di Sanità, Dipartimento del Farmaco, Viale Regina Elena 299, I-00161 Rome, Italy.

出版信息

J Chromatogr A. 2011 Aug 19;1218(33):5653-7. doi: 10.1016/j.chroma.2011.06.081. Epub 2011 Jun 30.

DOI:10.1016/j.chroma.2011.06.081
PMID:21774940
Abstract

A set of ten C5-chiral 4,5-dihydro-(1H)-pyrazole derivatives was synthesized and analyzed by high-performance liquid chromatography (HPLC) on the polysaccharide-based Chiralcel OJ-H chiral stationary phase (CSP). The enantioseparations were carried out using pure ethanol as eluent. Different structural elements of the investigated compounds were recognized for obtaining a very high enantioselectivity. In order to clarify some aspects of the chiral discrimination process, the thermodynamic parameters associated to the enantiorecognition and the enantiomer elution order were established.

摘要

一组十个 C5-手性 4,5-二氢-(1H)-吡唑衍生物通过高效液相色谱(HPLC)在多糖基 Chiralcel OJ-H 手性固定相(CSP)上进行了合成和分析。使用纯乙醇作为洗脱剂进行对映体分离。通过识别研究化合物的不同结构元素,获得了非常高的对映选择性。为了阐明手性识别过程的一些方面,确定了与对映体识别和对映体洗脱顺序相关的热力学参数。

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