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, 0.10 g, 0.26 mmol) in THF (5 ml) was added cyclopropanamine (0.03 g, 0.52 mmol) and NaBH(OAc)3 (0.55 g, 0.26 mmol). The reaction was stirred for 3 hours, quenched with aqueous 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 (0.068 g, 62%). 1H NMR (400 MHz) δ 11.92 (s, 1H), 9.62 (s, 1H), 8.93 (s, 1H), 8.35 (s, 1H), 7.39 (d, J=7.4 Hz, 1H), 7.31-7.27 (m, 2H), 7.16-7.11 (m, 2H), 6.10 (s, 1H), 5.13-5.10 (m, 1H), 2.96-2.94 (m, 1H), 1.89-1.80 (m, 1H), 1.42 (d, J=6.9 Hz, 3H), 0.98-0.88 (m, 2H), 0.76-0.63 (m, 2H). MS: Calcd.: 422. Found: [M+H]+ 423.

1. customquenched with aqueous 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)