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温度

0 °C

To a solution of 1-(trans-4-aminocyclohexyl)-1-(1,3-thiazol-2-yl)ethanol (100 mg, 0.44 mmol) in dichlormethane (2.9 mL) and triethylamine (0.31 mL, 2.21 mmol) at 0° C. was added methanesulfonyl chloride (34 μL, 0.44 mmol) and the reaction was allowed to stir for 10 minutes at 0° C. and then diluted with water, dichloromethane and aqueous saturated sodium bicarbonate. The organic layer was separated, dried over magnesium sulfate, filtered and concentrated in vacuo. The residue was purified by column chromatography on silica gel (0-100% ethyl acetate gradient in hexanes) to afford N-{trans-4-[1-hydroxy-1-(1,3-thiazol-2-yl)ethyl]cyclohexyl}methanesulfonamide. MS ESI calc'd. for C12H21N2O3S2 [M+H]+ 305. found 305. 1H NMR (500 MHz, CDCl3) δ 7.70 (d, J=3.2, 1H), 7.28 (d, J=3.2, 1H), 4.25-4.14 (m, 1H), 3.30-3.13 (m, 1H), 2.95 (s, 3H), 2.18-2.09 (m, 1H), 2.09-2.02 (m, 2H), 1.96-1.88 (m, 1H), 1.80-1.69 (m, 1H), 1.64-1.53 (m, 3H), 1.40-1.28 (m, 1H), 1.28-1.13 (m, 3H).

1. customThe organic layer was separated
2. dry with materialdried over magnesium sulfate
3. filtrationfiltered
4. concentrationconcentrated in vacuo
5. customThe residue was purified by column chromatography on silica gel (0-100% ethyl acetate gradient in hexanes)