C(OC(=O)[NH:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=1[C:14]1[CH:19]=[C:18]([NH:20][N:21]=[C:22]([C:24]2[CH:29]=[CH:28][C:27]([N:30]([CH3:32])[CH3:31])=[CH:26][CH:25]=2)[CH3:23])[N:17]=[C:16]([CH3:33])[N:15]=1)(C)(C)C>FC(F)(F)C(O)=O.ClCCl>[NH2:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=1[C:14]1[N:15]=[C:16]([CH3:33])[N:17]=[C:18]([NH:20][N:21]=[C:22]([C:24]2[CH:25]=[CH:26][C:27]([N:30]([CH3:32])[CH3:31])=[CH:28][CH:29]=2)[CH3:23])[CH:19]=1[2-(6-{N′-[1-(4-dimethylamino-phenyl)-ethylidene]-hydrazino}-2-methyl-pyrimidin-4-yl)-phenyl]-carbamic acid tert-butyl ester was dissolved in 10 mL of 5% trifluoroacetic acid in dichloromethane. The resultant reaction mixture was stirred at room temperature for 2 hours before being concentrated in vacuo. The residue was dissolved in methanol and the pH was adjusted to 7 with potassium bicarbonate. After filtration the methanol was concentrated in vacuo and the residue was purified by Si gel chromatography (1:1 ethyl acetate:hexanes) yielding 140 mg (60%) of the title compound as a brown solid. HPLC Purity: 95%.
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