反应详情

To a solution of 5-[5-(3-{[4-(2-{[tert-butyl(dimethyl)silyl]oxy}ethoxy)pyrimidin-2-yl]amino}-5-methylphenyl)-1,3-thiazol-2-yl]-2,2-dimethyl-1,3-dioxan-5-ol (185 mg, 0.32 mmol) in tetrahydrofuran (1.6 mL) was added hydrochloric acid (1.0 N, 970 μL, 0.97 mmol) at room temperature. The mixture was stirred at room temperature for 2.5 h, then diluted with methanol, filtered, and purified by reverse phase HPLC (10:90 to 90:10 acetonitrile:water with a 0.1% trifluoroacetic acid modifier). The combined fractions were dried on a lyophilizer, dissolved in methanol, and the TFA salt converted to the free base using StratoSpheres SPE PL-HCO3 MP-Resin (0.9 mmol) cartridges to give 2-[5-(3-{[4-(2-hydroxyethoxy)pyrimidin-2-yl]amino}-5-methylphenyl)-1,3-thiazol-2-yl]propane-1,2,3-triol (75 mg, 0.18 mmol, 56% yield) as a white foam. MS ESI: [M+H]+ m/z 419.1. 1H NMR (500 MHz, DMSO-d6) δ 9.65 (dd, J=4.3, 15.1, 1H), 8.21 (d, J=5.7, 1H), 7.96 (s, 1H), 7.90 (s, 1H), 7.47 (s, 1H), 7.09 (s, 1H), 6.31 (s, 1H), 4.39 (s, 2H), 3.79-3.72 (m, 2H), 3.72-3.63 (m, 4H), 2.30 (s, 3H). rhSYK activity=+++

1. filtrationfiltered
2. custompurified by reverse phase HPLC (10:90 to 90:10 acetonitrile
3. customThe combined fractions were dried on a lyophilizer
4. dissolutiondissolved in methanol