5-Fluoro-2-(trifluoromethyl)benzoyl chloride → 6-[4-(5-FLUORO-2-TRIFLUOROMETHYLBENZOYL)PIPERAZIN-1-YL]PYRIDAZINE-3-CARBOXYLIC Acid (4-METHYLPENTYL)AMIDE

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Reaction Steps

Following the procedure of Example 3, making variations only as required to use 5-fluoro-2-trifluoromethylbenzoyl chloride in place of isoxazole-5-carbonyl chloride to react with 6-piperazin-1-yl-pyridazine-3-carboxylic acid (4-methylpentyl)amide, the title compound was obtained as a white solid (10% yield). 1H NMR (300 MHz, CDCl3) δ 8.04, 7.86, 7.75-7.71, 7.26-7.22, 7.08-7.04, 6.98, 4.10-3.98, 3.90-3.70, 3.46-3.40, 3.36-3.33, 1.61-1.50, 1.28-1.20, 0.85. 13C NMR (75 MHz, CDCl3) δ 166.0, 162.9, 162.6, 159.9, 145.5, 136.8, 129.7, 127.6, 127.7, 127.2, 125.1, 123.3, 121.4, 116.8, 116.5, 114.9, 114.6, 113.9, 112.5, 46.3, 44.5, 44.3, 41.3, 39.7, 36.0, 27.8, 27.4, 22.5. MS (ES+) m/z 482.4 (M+1).

Provenance & Evidence