反应详情

The oil obtained from step 2 is dissolved in dioxane (5 mL). 4 N HCl in dioxane (5 ml, 20 mmol) is added. The mixture is stirred at rt overnight. The solvent is removed and the residue is washed with ether to give the title compound as a white solid. MS (M+1): 290.1.

1. customThe solvent is removed
2. washthe residue is washed with ether