反应详情

To a solution of (S)-6-(5-cyclopropyl-1H-pyrazol-3-ylamino)-5-fluoro-2-(1-(4-fluorophenyl)ethylamino)nicotinaldehyde (Example 73, 0.12 g, 0.31 mmol) in DCE (5 ml) was added morpholine (0.1 g, 1.14 mmol) and NaBH(OAc)3 (0.30 g, 1.5 mmol). The reaction was then stirred for 2 days, quenched with aq. Na2CO3 (10 ml), and extracted with DCM (2×20 ml). The combined organic fractions were dried over Na2SO4, filtered, and then concentrated. The resulting oil was purified by reverse-phase column chromatography (5-35% ACN) to give the title compound (0.09 g, 67%). 1H NMR (400 MHz, CD3OD) δ 7.41 (br s, 2H), 7.06-7.02 (m, 3H), 6.13 & 5.44 (s, 1H), 5.12 & 4.97 (s, 1H), 3.63 (br s, 4H), 3.42 (br s, 2H), 2.41 (br s, 4H), 1.87-1.82 (m, 1H), 1.54 (d, J=6.5 Hz, 3H), 0.96-0.90 (m, 2H), 0.65-0.64 (m, 2H). MS: Calcd.: 454. Found: [M+H]+ 455.

1. customquenched with aq. Na2CO3 (10 ml)
2. extractionextracted with DCM (2×20 ml)
3. dry with materialThe combined organic fractions were dried over Na2SO4
4. filtrationfiltered
5. concentrationconcentrated
6. customThe resulting oil was purified by reverse-phase column chromatography (5-35% ACN)