1
|
Tian J, Jiang YX, Yu XQ, Yu SS. Rapid chiral assay of amino compounds using diethyl squarate. Spectrochim Acta A Mol Biomol Spectrosc 2022; 272:120871. [PMID: 35151169 DOI: 10.1016/j.saa.2022.120871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 01/05/2022] [Accepted: 01/06/2022] [Indexed: 06/14/2023]
Abstract
The versatility and importance of chiral compounds make it urgent to develop fast and efficient methods to detect the absolute configuration, enantiomeric excess(ee), and concentration of chiral compounds. In this study, we demonstrate that commercially available diethyl squarate can rapidly react with various types of chiral amino compounds and exhibit characteristic ultraviolet (UV) and circular dichroism (CD) signals. The UV and CD signals can determine the total concentration of the two enantiomers and ee value of the sample, respectively. The probe showed a broad substrate scope, applicable to 39 tested chiral amino compounds, including chiral amino acids, amino alcohols, and amines. Additionally, the probe accurately detected 10 samples of phenylalanine, phenylglycinol, and phenethylamine with the error range less than 8%, demonstrating the practicability of this method.
Collapse
Affiliation(s)
- Jun Tian
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry Sichuan University, 29, Wangjiang Road, Chengdu, Sichuan Province 610064, China
| | - Yi-Xuan Jiang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry Sichuan University, 29, Wangjiang Road, Chengdu, Sichuan Province 610064, China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry Sichuan University, 29, Wangjiang Road, Chengdu, Sichuan Province 610064, China.
| | - Shan-Shan Yu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry Sichuan University, 29, Wangjiang Road, Chengdu, Sichuan Province 610064, China.
| |
Collapse
|
2
|
Meloche M, Jutras M, St-Jean I, de Denus S, Leclair G. Isocyanate derivatization coupled with phospholipid removal microelution-solid phase extraction for the simultaneous quantification of (S)-metoprolol and (S)-α-hydroxymetoprolol in human plasma with LC-MS/MS. J Pharm Biomed Anal 2021; 204:114263. [PMID: 34274593 DOI: 10.1016/j.jpba.2021.114263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 06/29/2021] [Accepted: 07/10/2021] [Indexed: 11/17/2022]
Abstract
A sensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) assay was developed and validated for the quantification of (S)-metoprolol (MET) and its main metabolite, (S)-α-hydroxymetoprolol (OH-MET). Human plasma samples (50 μL) were spiked with both analytes and their deuterated internal standards (IS) (S)-MET-(d7) and α-OH-MET-(d5). Phospholipid removal microelution-solid phase extraction (PRM-SPE) was performed using a 4-step protocol with Oasis PRiME MCX μElution 96-well cartridges. The eluates were reconstituted in 100 μL of acetonitrile with 50 μg/mL (S)-α-methylbenzyl isocyanate (MBIC) for chiral derivatization. After 60 min at room temperature, the reaction was quenched using 100 μL of water 2 % formic acid. Chromatographic separation of the derivatized analytes was performed on a Kinetex phenyl-hexyl core-shell stationary phase with an elution gradient. Mobile phases were composed of a mixture of water and methanol, with ammonium formate and formic acid as buffers. Total runtime was 15 min. Analyte detection was performed by an AB/SCIEX 4000 QTRAP mass spectrometer with multiple reaction monitoring. Chromatograms showed MBIC successfully reacted with racemic MET, α-OH-MET, and their respective IS. Detection by positive electrospray ionization did not reveal derivatized by-products. Quantification ranges were validated for (S)-MET and (S)-α-OH-MET between 0.5-500 and 1.25-500 ng/mL, respectively, with correlation coefficients (r2) >0.9906. The PRM-SPE assay showed low matrix effects (86.9-104.0 %) and reproducible recoveries (69.4-78.7 %) at low, medium, and high quality control (QC) levels. Precision and accuracy were all comprised between 85-115 % for all three QCs, and between 80-120 % for the lower limit of quantification, for intra- and inter-day values (n = 6, 3 consecutive days). Non-derivatized analytes were stable at room temperature, after 3 freeze-thaw cycles, and stored for 30 days at -80 °C (n = 4). Reinjection reproducibility of a previously validated batch was achieved after 8 days under auto-sampler conditions, indicating the stability of (S)-MET and (S)-α-OH-MET derivatives. Its clinical use was established in a cohort of 50 patients and could be used to further investigate the clinical impact of (S)-MET concentrations.
Collapse
Affiliation(s)
- Maxime Meloche
- Faculty of Pharmacy, Université de Montréal, H3T 1J4, Montreal, Quebec, Canada; Montreal Heart Institute, H1T 1C8, Montreal, Quebec, Canada; Université de Montréal Beaulieu-Saucier Pharmacogenomics Centre, H1T 1C8, Montreal, Quebec, Canada.
| | - Martin Jutras
- Faculty of Pharmacy, Université de Montréal, H3T 1J4, Montreal, Quebec, Canada.
| | - Isabelle St-Jean
- Faculty of Pharmacy, Université de Montréal, H3T 1J4, Montreal, Quebec, Canada.
| | - Simon de Denus
- Faculty of Pharmacy, Université de Montréal, H3T 1J4, Montreal, Quebec, Canada; Montreal Heart Institute, H1T 1C8, Montreal, Quebec, Canada; Université de Montréal Beaulieu-Saucier Pharmacogenomics Centre, H1T 1C8, Montreal, Quebec, Canada.
| | - Grégoire Leclair
- Faculty of Pharmacy, Université de Montréal, H3T 1J4, Montreal, Quebec, Canada.
| |
Collapse
|