A new synthetic route of Triphenyl methyl olmesartan

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In heterogeneous catalysis, the catalyst is in a different phase from the reactants. 144690-92-6, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 144690-92-6, name is C48H44N6O6. In an article£¬Which mentioned a new discovery about 144690-92-6

10L reaction flask was charged 500.0g (0.62mol) compound 6,3L water, 1L of acetone, was added dropwise a solution of 645.0g of 22.5% sulfuric acid at 20 . Dropping was completed, the reaction at room temperature after 4.5h TLC or HPLC in control, raw reaction was complete. Body cooling system to 0-5 , when the temperature stabilized filtrate back into the reaction vessel was charged with acetone 1L and 2L water. The system was maintained at 15 solution of 210g of potassium carbonate and 400g water to form a solution, drops of completion, stirring after 1-2h incubation filtration. The filter cake was dried to obtain olmesartan medoxomil pure 328.9g. HPLC: 99.96%, yield: 94.3%, 144690-92-6

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Reference£º
Patent; Jiangsu Bang Pharmaceutical Co., Ltd.; Zhao, Guangrong; Huan, Shuang; Zhao, Huayang; Liu, Liping; Chen, Guoping; Tang, Jingyu; (19 pag.)CN105481842; (2016); A;,
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