Triethylamine → N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methyloxazole-4-carboxamide

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Reaction Steps

A mixture of 5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine (200 mg, 0.869 mmol, Example 1, Step H), 2-methyloxazole-4-carboxylic acid (276 mg, 2.17 mmol), triethylamine (606 μL, 4.35 mmol), and BOP-Cl (203 mg, 2.17 mmol) in CH2Cl2 (10 mL) was stirred at room temperature for 4 hours. Next, 2M LiOH.H2O (3 mL) was added, and after 30 minutes water (10 mL) was added. The solid formed was filtered, washed with water (2×5 mL) and dried to provide N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methyloxazole-4-carboxamide (165 mg, 56% yield) as a solid. 1H NMR (400 MHz, (CD3)2SO) δ 12.15 (s, 1H), 9.68 (s, 1H), 8.63 (s, 1H), 8.37 (d, 1H), 7.67 (s, 1H), 2.52 (s, 3H); LCMS (APCI+) m/z 338.9, 341.0 (M+H)+, Retention time=3.21 minutes (Method 2).

Provenance & Evidence