Triethylamine → 1-(4-{7-[4-(4-Methyl-piperazine-1-carbonyl)-phenyl]-imidazo[1,2-a]pyridin-3-yl}-benzyl)-3-(3-trifluoromethyl-phenyl)-urea

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Reaction Steps

Combine {4-[3-(4-aminomethyl-phenyl)-imidazo[1,2-a]pyridin-7-yl]-phenyl}-(4-methyl-piperazin-1-yl)-methanone, bis hydrochloride (0.30 g, 0.56 mmol), 3-trifluoromethylphenyl isocyanate (0.1 mL, 0.73 mmol) and triethylamine (0.4 mL, 2.9 mmol) in DMSO (10 mL). Filter the solution through 10 g SCX column eluting with methanol→2 N ammonia in methanol. Concentrate fractions containing product to give a residue. Purify by chromatography (5% methanol in dichloromethane→10% methanol in dichloromethane→10% 2 N ammonia methanol in dichloromethane) to afford product (0.18 g, 52%). MS(ES), m/z 613 (M+1).

Provenance & Evidence