lithium aluminium tetrahydride in 1,4-dioxane 2 h; Heating;

1: With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride in acetonitrile 0.0833333 h; Inert atmosphere; 2: With triethylamine in acetonitrile 1.5 h; Inert atmosphere;

1.) Et2O, 25 deg C, overnight, 2.) Et2O, H2O, 1 h; Yield given. Multistep reaction;