反应详情

Solid LiAlH4 (29 mg, 0.713 mmol) was added to a stirring solution of Intermediate 86 (265 mg, 0.357 mmol) in THF (5 mL) at 0° C. After stirring for an hour H2O (0.029 mL), 15% (w/v) NaOH (0.029 mL), and H2O (0.087 mL) were added in order then stirred for additional 1 h. The resulting suspension was diluted with EtOAc (10 mL) and the organic layer was washed with H2O (15 mL), brine (15 mL), dried over Na2SO4, and concentrated to give crude alcohol (224 mg) as yellow solid. Chromatography (9:1, CH2Cl2/MeOH) afforded the title compound (110 mg, 43%) as yellow solid. ES/MS calcd. for C41H39N4O6S+ 715.3. Found m/z=715.4 (M+H)+.

1. additionwere added in order
2. washthe organic layer was washed with H2O (15 mL), brine (15 mL)
3. dry with materialdried over Na2SO4
4. concentrationconcentrated
5. customto give crude alcohol (224 mg) as yellow solid