3-Aminophenol → N4-(3,4-dimethoxyphenyl)-5-fluoro-N2-(3-hydroxyphenyl)-2,4-pyrimidinediamine

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In like manner to the preparation of N4-(3,4-ethylenedioxyphenyl)-5-fluoro-N2-(3-hydroxyphenyl)-2,4-pyrimidinediamine, the reaction of 2-chloro-N4-(3,4-dimethoxyphenyl)-5-fluoro-4-pyrimidineamine with 3-hydroxyaniline gave N4-(3,4-dimethoxyphenyl)-5-fluoro-N2-(3-hydroxyphenyl)-2,4-pyrimidinediamine. 1H NMR (CD3OD): δ 7.77 (d, 1H, J=3.3 Hz), 7.15 (d, 1H, J=2.4 Hz), 7.05 (dd, 1H, J=2.4 and 8.4 Hz), 7.00-6.90 (m, 4H), 6.80 (d, 1H, J=8.1 Hz), 6.40 (m, 1H), 4.05 (q, 2H), 3.80 (s, 3H), 3.75 (s, 3H), 1.20 (t, 3H); 19F NMR (CD3OD): −47223; LCMS: ret. time: 17.94 min.; purity: 99%; MS (m/e): 357 (MH+).

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