4-(4-Benzylpiperazin-1-yl)aniline → N2-[4-(N-benzylpiperazino)phenyl]-N4-(3,4-ethylenedioxyphenyl)-5-fluoro-2,4-pyrimidinediamine

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In a manner analogous to the preparation of N4-(3,4-ethylenedioxyphenyl)-5-fluoro-N2-(3-hydroxyphenyl)-2,4-pyrimidinediamine, the reaction of 2-chloro-N4-(3,4-ethylendioxyphenyl)-5-fluoro-4-pyrimidineamine (50 mg, 0.18 mmol) and 4-(4-benzylpiperazino)aniline (142 mg, 0.53 mmol) resulted N2-[4-(N-benzylpiperazino)phenyl]-N4-(3,4-ethylenedioxyphenyl)-5-fluoro-2,4-pyrimidinediamine (30 mg, 33%). 1H NMR (CDCl3): δ 2.63 (t, J=4.8 Hz, 4H), 3.16 (t, J=4.8 Hz, 4H), 3.58 (s, 2H), 4.27 (m, 4H), 6.56 (d, 1H, NH), 6.70 (br, 1H, NH), 6.82 (d, J=8.7 Hz, 1H), 6.89 (d, J=9.0 Hz, 2H), 6.96 (dd, J=2.7 and 8.7 Hz, 1H), 7.28 (d, J=2.7 Hz, 1H), 7.30-7.36 (m, 5H), 7.39 (d, J=8.7 Hz, 2H), 7.88 (d, J=3.3 Hz, 1H); 19F NMR (282 MHz, CDCl3): δ−168.94; LCMS: ret. time: 18.12 min.; purity: 98.42%; MS (m/e): 512.95 (MH+).

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