Synthesis and characterization of one impurity in esomeprazole, an antiulcerative drug

During drug synthesis, control of impurities is very important to get high-qualified drugs. A number of studies have devoted to synthesize the impurities and study the structures to support the method of purification. In this paper, we first synthesize one impurity in esomeprazole, rel-2-[[(3,5-dime...

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Veröffentlicht in:Chemical papers 2020-03, Vol.74 (3), p.867-877
Hauptverfasser: Liu, Zhen-Tao, Meng, Xia, Fang, Shi-Min, Wang, Li-Zhen, Wang, Zhen-Zheng, Yang, Geng, Duan, Hong-Dong, Hao, Ai-You
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container_issue 3
container_start_page 867
container_title Chemical papers
container_volume 74
creator Liu, Zhen-Tao
Meng, Xia
Fang, Shi-Min
Wang, Li-Zhen
Wang, Zhen-Zheng
Yang, Geng
Duan, Hong-Dong
Hao, Ai-You
description During drug synthesis, control of impurities is very important to get high-qualified drugs. A number of studies have devoted to synthesize the impurities and study the structures to support the method of purification. In this paper, we first synthesize one impurity in esomeprazole, rel-2-[[(3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-6-methoxy-1 H -benzimidazole, with readily available raw materials, simple operation procedures and relatively mild reaction. Besides, we characterized its structure by MS, IR, 1 H-NMR and HPLC analyses. The purity of target compound is as high as 99.58%, which can be used as the reference substance of the impurities of esomeprazole.
doi_str_mv 10.1007/s11696-019-00918-3
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subjects Biochemistry
Biotechnology
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Impurities
Industrial Chemistry/Chemical Engineering
Materials Science
Medicinal Chemistry
NMR
Nuclear magnetic resonance
Original Paper
Raw materials
Synthesis
title Synthesis and characterization of one impurity in esomeprazole, an antiulcerative drug
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