Diisopropylethylamine → 6-[(1-methylethyl)sulfonyl]-3-[(3-methyl-4-oxo-1-piperidinyl)methyl]-2-[3-(trifluoromethyl)phenyl]-N-[(1R)-2,2,2-trifluoro-1-phenylethyl]-4-quinolinecarboxamide

Beteiligte Stoffe

Reaktionsschritte

T3P (propylphosphonic anhydride) (0.698 mL of a 50% solution in ethyl acetate, 1.185 mmol), N,N-diisopropylethylamine (0.478 mL, 2.73 mmol), and [(1R)-2,2,2-trifluoro-1-phenylethyl]amine (0.251 g, 1.185 mmol) were added to a suspension of 6-[(1-methylethyl)sulfonyl]-3-[(3-methyl-4-oxo-1-piperidinyl)methyl]-2-[3-(trifluoromethyl)phenyl]-4-quinolinecarboxylic acid (0.5 g, 0.911 mmol) in dichloromethane (14.02 mL) at 0° C. After 90 min, additional T3P (propylphosphonic anhydride, 0.349 mL of a 50% solution in ethyl acetate, 0.593 mmol) was added. The mixture was stirred overnight at room temperature. The mixture was diluted with methylene chloride (30 mL), and the solution was washed with 10% Na2CO3, dried over Na2SO4, filtered, and concentrated in vacuo. The residue was loaded onto florisil and purified using column chromatography (ISCO, 12 g silica, 5-40% ethyl acetate/hexanes) to afford 6-[(1-methylethyl)sulfonyl]-3-[(3-methyl-4-oxo-1-piperidinyl)methyl]-2-[3-(trifluoromethyl)phenyl]-N-[(1R)-2,2,2-trifluoro-1-phenylethyl]-4-quinolinecarboxamide (0.431 g, 67% yield). MS (m/z) 706.3 (M+H+).

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