2-Bromo-4-methylaniline → 4-(4-Hydroxyanilino)-6-(2-bromo-4-methylanilino)pyrimidine

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To a solution of 4-(4-hydroxyanilino)-6-chloropyrimidine (Reference Example 5, 5 g) was added 2-bromo-4-methylaniline (7.5 ml) and the reaction mixture was heated at 195° C. for 24 hours. The residue was absorbed onto silica and purified by column chromatography eluting with DCM:MeOH (19:1) to give the title compound (336 mg, 4%). NMR: 2.28 (3H, s), 5.72 (1H, s), 6.68 (2H, d), 7.17 (3H, m), 7.39 (1H, d), 7.48 (1H, s), 8.05 (1H, s), 8.38 (1H, s), 8.65 (1H, s), 9.08 (1H, s); m/z 371 (MH+).

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