反应详情

温度

100 °C

To the product of Example 205 (0.020 g, 0.047 mmol) in pyridine (0.2 mL) was added 2,3-dichlorothiophene-5-sulfonyl chloride (0.015 g, 0.056 mmol). The reaction mixture was heated in a microwave reactor at 100° C. for 15 minutes. The reaction was diluted with ethyl acetate (40 mL), washed with 1 N hydrochloric acid, water, and brine. The organic layer was dried over magnesium sulfate, filtered and concentrated. The residue was chromatographed on silica gel eluting with 99:1 dichloromethane:methanol to give the title compound (14.8 mg, 50%). 1H NMR (300 MHz, DMSO-d6) δ 0.98 (d, J=6.25 Hz, 6 H) 1.56 (m, 2 H) 1.69 (m, 1 H) 4.47 (m, 2 H) 7.50 (m, 2 H) 7.56 (s, 1 H) 7.71 (d, J=8.82 Hz, 1 H) 7.76 (s, 1 H) 8.55 (dd, J=7.91, 2.02 Hz, 1 H) 8.88 (dd, J=4.60, 1.65 Hz, 1 H) 11.28 (s, 1 H) 14.19 (br s, 1 H). MS (ESI−) m/z 640 (M−H)−.

1. washwashed with 1 N hydrochloric acid, water, and brine
2. dry with materialThe organic layer was dried over magnesium sulfate
3. filtrationfiltered
4. concentrationconcentrated
5. customThe residue was chromatographed on silica gel eluting with 99:1 dichloromethane