反应详情

To a suspension of lithium aluminum hydride (15.9 mg, 0.429 mmol) in tetrahydrofuran (1 mL) was added a solution of methyl 4-[2-[(2,4-dichlorophenyl)amino]-7-(diethylamino)-1H-benzimidazol-1-yl]-3-hydroxybutanoate (Reference Example 83; 50.0 mg, 0.107 mmol) in tetrahydrofuran (1 mL) at 0° C. and the resultant mixture was stirred at 0° C. for 10 min. After sodium sulfate decahydrate (500 mg) was added at 0° C., the resultant mixture was filtered and concentrated in vacuo to give the title compound as an oil (45.0 mg, 0.103 mmol, 96%).

1. filtrationthe resultant mixture was filtered
2. concentrationconcentrated in vacuo