lmproved process of dexrabeprazole sodium / 中国药科大学学报
Journal of China Pharmaceutical University
;
(6): 291-294, 2018.
Artículo
en Chino
| WPRIM
| ID: wpr-704337
ABSTRACT
The aim of the work is to improve the synthetic process of dexrabeprazole sodium,enhance quality and yield of the product,simplify synthetic steps,and offer a stable and feasible process. Starting from 2-[[[4-(3-methoxypropoxy)-3-methylpyridine-2-yl]methyl]thio]-1 H-benzimidazole,dexrabeprazole was produced by asym-metric oxidation reaction with oxidant cumene hydroperoxide in the presence of chiral catalyst tetraisopropyl titan-ate and L-(+)-tartaric acid diethyl ester. Dexrabeprazole sodium was obtained by the reaction of purified dexrabeprazole with sodium hydroxide in a total yield of 79%with an HPLC purity of >99. 5%. The structure of dexrabeprazole sodium was confirmed by NMR,IR,elemental analysis and LC-MS. The improved process of dexrabeprazole sodium possesses simple operations,good yield and high purity,which is feasible for industrializa-tion.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Idioma:
Chino
Revista:
Journal of China Pharmaceutical University
Año:
2018
Tipo del documento:
Artículo
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