Diisopropylethylamine → (S)-6-(5-cyclopropyl-1H-pyrazol-3-ylamino)-5-fluoro-2-(1-(4-fluorophenyl)ethylamino)-4-iodonicotinonitrile

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A solution of 2-chloro-6-(5-cyclopropyl-1H-pyrazol-3-ylamino)-5-fluoro-4-iodonicotinonitrile (Method 39, 0.28 g, 0.69 mmol), (5)-1-(4-fluorophenyl)ethanamine (0.19 g, 1.3 mmol), and DIEA (0.11 g, 0.90 mmol) in n-BuOH (1 ml) was heated to 140° C. for 18 hours. The reaction was diluted with water (10 ml), extracted with DCM (2×20 ml) and the combined organic fractions were dried over Na2SO4, filtered, and then concentrated. The resulting oil was purified by column chromatography (DCM-MeOH=100:1) to give the title compound (0.07 g, 20%). MS: Calcd.: 506. Found: [M+H]+ 507.

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