A Mass Spectrometric Quantitative Analysis Method for Chiral Drugs Based on Chemical Derivatization Reaction and Spectral Deformation Analysis Quantitative Theory

Abstract

The invention provides a chiral drug mass spectrometry quantitative analysis method based on a chemical derivatization reaction and spectral deformation quantitative analysis theory, and the main process is as follows: 1) preparing a chiral acyl chloride probe capable of reacting with a chiral drug by an organic synthesis reaction; 2) using the chiral probe to react with the chiral drug to producea diastereomer complex product; 3) using mass spectrometry to determine the mass spectral data of each fragment ion of the diastereomer complex product; 4) using the spectral deformation quantitativeanalysis theory to extract quantitative information of a target components in the chiral drug from the mass spectral data of the diastereomer complex product. The chiral drug mass spectrometry quantitative analysis method is suitable for quantitative analysis of nitrogen, sulfur or phosphorus-containing chiral drugs without using a chromatography column, and provides a simple, low-cost, sensitiveand accurate chiral drug detection method in the medical field.

Description

technical field [0001] The invention relates to an accurate quantitative analysis technology for mass spectrometry of chiral drugs in medical samples. In particular, it relates to a chiral drug mass spectrum quantitative analysis method based on chemical derivation reaction and spectral deformation analysis quantitative theory. [0002] technical background [0003] About more than half of the currently used drugs are chiral compounds, and nearly 90% of them are racemic drugs formed by the equimolar mixture of two enantiomers. The chirality of drug molecules has a great impact on the biological and pharmacological properties of drugs. The isomers of most chiral drugs have significant differences in biological activities such as pharmacology, toxicology, pharmacokinetics, and metabolism. For example, R-type thalidomide has a sedative effect, but S-type thalidomide has serious teratogenic effects, which caused numerous miscarriages and more than 12,000 "seal fetuses" between ...

AI Technical Summary

Problems solved by technology

Although univariate nonlinear models may be derived from sound underlying assumptions, their univariate nature makes their quantitative results susceptible to experimental error and background noise

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