反应详情

To a solution of 1-[5-(2,4-diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-ethanone (2.500 g, 8.3 mmol) in 100 ml MeOH was slowly added NaBH4 (1.566 g, 41.4 mmol) at 0° C. The solution was allowed to warm to rt. After 20 h, the saturated NH4Cl was added, the mixture was concentrated in vacuo and extracted with ethyl acetate. The combined organics were washed with brine, dried over Na2SO4, filtered and concentrated in vacuo. Purification via silica gel column chromatography (9:1 CH2Cl2/MeOH) afforded to 1-[5-(2,4-diamino-pyrimidine-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-ethanol (1.613 g, 60%) as white foam; [MH]+=301.

1. customat 0° C
2. concentrationthe mixture was concentrated in vacuo
3. extractionextracted with ethyl acetate
4. washThe combined organics were washed with brine
5. dry with materialdried over Na2SO4
6. filtrationfiltered
7. concentrationconcentrated in vacuo
8. customPurification via silica gel column chromatography (9:1 CH2Cl2/MeOH)