反应详情

A solution of 6-chloro-5-fluoro-2-(4-morpholinophenylamino)nicotinamide (80 mg, 0.228 mmol), 3-(tributylstannyl)cyclohex-2-enone (105 mg, 0.274 mmol) (synthesized according to literature procedure: Tet. Lett., 31:1837-1840 (1990)), and dichloro bis(triphenylphosphine)palladium (II) (16.05 mg, 0.023 mmol) in DMF (2 mL) was microwaved at 160° C. for 1 h. The reaction mixture was diluted with methylene chloride, washed with satd. NaHCO3, water, and concentrated. The residue was purified prep-HPLC. The product containing fractions were collected, basified with 1N NaOH, and extracted with methylene chloride twice. The combined organic fractions were washed with water, concentrated, and further purified by MPLC (ISCO, 5% ammonia/methanol/methylene chloride, 40 g silica gel column) to give 22 mg brown solid. LC-MS: (M+H)+=411.25. 1H NMR (500 MHz, DMSO-d6) δ ppm 10.76-10.84 (1H, m), 8.28-8.39 (1H, m), 8.13-8.21 (1H, m), 7.83-7.91 (1H, m), 7.45-7.53 (2H, m), 6.88-6.96 (2H, m), 6.52-6.57 (1H, m), 3.67-3.77 (4H, m), 3.04 (4H, d, J=4.95 Hz), 2.76-2.85 (2H, m), 2.39-2.46 (2H, m), 2.01-2.09 (2H, m).

1. washwashed with satd
2. concentrationNaHCO3, water, and concentrated
3. customThe residue was purified prep-HPLC
4. additionThe product containing fractions
5. customwere collected
6. extractionextracted with methylene chloride twice
7. washThe combined organic fractions were washed with water
8. concentrationconcentrated
9. customfurther purified by MPLC (ISCO, 5% ammonia/methanol/methylene chloride, 40 g silica gel column)