反应详情

(2-Amino-pyridin-4-yl)-methanol (4.68 g, 37.7 mmol) was dissolved in 40 mL anhydrous DMF under N2. Imidazole (2.57 g, 37.7 mmol, 1 equiv) was added followed by the addition of TBSCl (5.68 g, 37.7 mmol, 1 equiv). After 2 hours the reaction was quenched by the addition of water. A precipitate formed which was filtered to afford pure desired product. The aqueous filtrate was extract 3× with EtOAc. The organic phases were dried over Na2SO4, filtered and concentrated to afford additional impure material. 1H NMR (CDCl3) δ 7.99 (d, 1H, J=5.8 Hz), 6.57 (d, 1H, J=5.1 Hz), 6.51 (s, 1H), 4.64 (s, 2H), 4.40 (bs, 2H), 0.95 (s, 9H), 0.11 (s, 6H). 2-[4-(tert-Butyl-dimethyl-silanyloxymethyl)-pyridin-2-ylamino]-thiazole-5-carbonitrile (3-1)

1. customAfter 2 hours the reaction was quenched by the addition of water
2. customA precipitate formed which
3. filtrationwas filtered