Acetic Acid → 1-(1-Hydroxy-2-methylpropan-2-yl)-3-(4-(3-methyl-4-(2-methylbenzo[d]oxazol-5-yloxy)phenylamino)quinazolin-6-yl)thiourea

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To a solution of 1-(3-cyano-4-((dimethylamino)methyleneamino)phenyl)-3-(1-hydroxy-2-methylpropan-2-yl)thiourea (275 mg, 0.861 mmol) and 3-methyl-4-(2-methylbenzo[d]oxazol-5-yloxy)benzenamine (241 mg, 0.947 mmol) in isopropyl acetate (2 mL) was added acetic acid (0.2 mL, 3.44 mmol). After stirring at room temperature for 16 hours, hexanes was added and stirred with the mixture for 30 minutes. The mixture was filtered to provide the crude product (281 mg, 62%) as yellow solid.

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