[Cl:1][C:2]1[N:7]=[C:6](Cl)[CH:5]=[C:4]([C:9]([F:12])([F:11])[F:10])[N:3]=1.[CH3:13][NH:14][C:15]1[CH:20]=[CH:19][C:18]([O:21][C:22]([F:25])([F:24])[F:23])=[CH:17][CH:16]=1.C(N(C(C)C)CC)(C)C>C1COCC1>[Cl:1][C:2]1[N:7]=[C:6]([N:14]([CH3:13])[C:15]2[CH:20]=[CH:19][C:18]([O:21][C:22]([F:23])([F:24])[F:25])=[CH:17][CH:16]=2)[CH:5]=[C:4]([C:9]([F:12])([F:11])[F:10])[N:3]=12,4-Dichloro-6-trifluoromethylpyrimidine (XXVII) (1.00 g, 4.6 mmol) was dissolved in dry THF (5 mL). To this solution was added N-methyl-4-trifluoromethoxyaniline (0.88 g, 4.6 mmol) and diisopropylethylamine (0.8 mL, 4.6 mmol). The resulting solution was stirred at room temperature for 18 hrs, then the volatiles were removed in vacuo and the residue was dissolved in CH2Cl2 (50 mL). The CH2Cl2 solution was washed with 2N HCl, dried over MgSO4, filtered and then concentrated in vacuo to give a brown color oil. Purification of the brown oil by chromatography (silica, hexane/EtOAc) afforded the product (XXVIII) as a yellow solid (0.95 g, 56%): 1H NMR (CDCl3) δ 7.42-7.27 (m, 4H), 6.4 (s, 1H), 3.5 (s, 3H); GC/MS m/z (relative intensity) 374 (26), 373 (45), 372 (76), 370 (100).
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