Chiral Ion Mobility Spectrometry for Rapid Separation of Enantiomeric Compounds

描述(由申请人提供)：蛋白质组装、药物相互作用和底物识别是取决于分子手性取向的几个重要的生理相互作用。初步结果表明，通过用手性分子修饰漂移气体，离子迁移率光谱可以为手性化合物提供一种新的快速分离技术。与手性层析和毛细管电泳法类似，手性离子迁移率光谱检测对映体混合物的能力是基于分析物与中性手性修饰剂的相互作用。本研究的最终目标是将电喷雾电离-手性离子迁移率-质谱仪(ESI-CIMS-MS)这一快速手性分离表征仪器实现商业化。所提出的系统不仅可以在毫秒内分离手性分子，而且可以将方法开发时间缩短到几分钟。ESI-CIMS-MS分离速度快，方法开发简单，是许多应用的首选方法，分析时间是一个重要的考虑因素。该系统可用于直接测量药物产品中手性成分的对映体过量，当数百种药物化合物被筛选为候选药物时，可用于增加药物发现中手性测量的吞吐量，可用于监测制备手性分离过程的性能，或可用作色谱系统的手性选择性检测器。关键词：手性离子迁移率光谱仪、电喷雾电离、对映体、药物、快速手性分离 公共卫生相关性：提出的手性离子迁移率光谱仪-质谱仪，在几秒钟内分离和鉴定手性化合物，可以潜在地取代手性色谱，对于手性分析时间是一个关键的考虑因素。快速对映体过量测量在药物发现过程和药品的质量保证/质量控制中是必不可少的，因为制成药物配方的单一对映体化合物的全球销售额达到每年1500亿美元。该系统还可用于复杂混合物中手性化合物的分析，用于生物医学研究中生物标志物、代谢物和其他生物活性化合物的定量和检测。

DESCRIPTION (provided by applicant): Assembly of proteins, drug interactions, and substrate recognition are a few of the vital physiological interactions that depend on the chiral orientation of molecules. Preliminary results clearly demonstrate that by modifying the drift gas with chiral molecules, ion mobility spectrometry can provide a novel and rapid separation technique for chiral compounds. Similar to chiral chromatography and capillary electrophoresis, the ability of chiral ion mobility spectrometry to examine enantiomeric mixtures is based upon the interaction of analytes with neutral chiral modifiers. The ultimate goal of the research proposed is to develop and commercialize the rapid chiral separation and characterization instrument: electrospray ionization - chiral ion mobility spectrometer - mass spectrometer (ESI-CIMS-MS). The proposed system can not only separate chiral molecules in milliseconds, but also reduce method development time to minutes. Great separation speed and easy method development of ESI-CIMS-MS make it the method of choice for many applications analysis time is a critical consideration. The proposed system can be used to directly measure enantiomeric excess of chiral ingredients in pharmaceutical products, may serve to increase throughput for chirality measurements in drug discovery when hundreds of drug compounds are being screened as drug candidates, can be used to monitor the performance of preparative chiral separation processes, or can be used as a chiral selective detector for chromatographic systems. Key words: chiral Ion mobility spectrometer, electrospray ionization, enantiomers, pharmaceuticls, rapid chiral separation PUBLIC HEALTH RELEVANCE: Proposed chiral ion mobility spectrometer - mass spectrometer, separating and identifying chiral compounds in seconds, can potentially replace chiral chromatography for chiral analysis time is a critical consideration. Rapid enantiomeric excess measurement is essential in drug discovery process and QA/QC of pharmaceutical products as worldwide sales of single-enantiomer compounds made into the pharmaceutical formulations reaches $150 billion/year. The proposed system can also be used for the analysis of chiral compounds in complex mixture for quantification and detection of biomarkers, metabolites and other bioactive compounds in biomedical research.