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A solution of the compound from example 3d) (345 mg; 1.8 mmol.) in anhydrous tetrahydrofuran (20.0 ml_) was cooled to 5 oC for the portionwise addition of solid lithium aluminumhydride (70.0 mg; 1.8 mmol.) and stirred at 5 0C for 1 h. The mixture was quenched by the addition of ethyl acetate (50.0 ml_) then water (5.0 ml_), filtered through a pad of Celite and evaporated. The residue was dissolved in ethyl acetate (50.0 ml.) and treated with manganese dioxide (0.50 g) and stirred at room temperature for 2 h. The mixture was filtered through a pad of Celite and evaporated to afford the title compound (169 mg; 60%) as a brown powder which was used directly in the following step without further purification
A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 318276-74-3., 318276-74-3
Reference£º
Patent; SMITHKLINE BEECHAM CORPORATION; WO2007/103759; (2007); A2;,
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