Synthetic Route of C17H19N3O2S. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]benzimidazole, is researched, Molecular C17H19N3O2S, CAS is 73590-85-9, about An efficient asymmetric approach to the R-enantiomer impurity of esomeprazole. Author is Zhou, Guobin; Guan, Yueqing.
The R-enantiomer of esomeprazole (5-methoxy-2-[(4-methoxy-3, 5-dimethyl-2-pyridinylmethyl)sulfinyl]-1H-benzimidazole) was synthesized with high enantioselectivity by asym. oxidation of prochiral sulfide using the oxaziridinium salt. This (R)-enantiomer, useful as a reference for the quality control of esomeprazole was characterized by 1H and 13CNMR, IR and HRMS. The enantiomeric excess was determined by HPLC.
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Reference:
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Ether | (C2H5)2O – PubChem