Yu, Yong published the artcileSynthesis of sodium esomeprazole, SDS of cas: 161796-78-7, the publication is Huaxue Yanjiu Yu Yingyong (2014), 26(4), 591-595, database is CAplus.
Esomeprazole sodium was synthesized through asym. oxidation reaction, and the synthesis process route was optimized. The ufiprazole was prepared firstly, which was then oxidized to form esomeprazole. Finally, the esomeprazole sodium was prepared by reaction of esomeprazole with sodium hydroxide. The overall yield was 57.2%. The structures of target compounds were characterized by IR, 1H NMR and MS.
Huaxue Yanjiu Yu Yingyong published new progress about 161796-78-7. 161796-78-7 belongs to imidazoles-derivatives, auxiliary class Membrane Transporter/Ion Channel,Proton Pump, name is Sodium (S)-6-methoxy-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)benzo[d]imidazol-1-ide, and the molecular formula is C19H21N3O3S, SDS of cas: 161796-78-7.
Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem