Ethyl Acetate → N-{2-fluoro-5-[(8aR)-hexahydropyrrolo[1,2-a]pyrazin-2(1H)-ylcarbonyl]phenyl}-3-(trifluoromethyl)benzenesulfonamide

Participants

Reaction Steps

To (R)-(3-amino-4-fluorophenyl)(hexahydropyrrolo[1,2-a]pyrazin-2(1H)-yl)methanone (79 mg, 0.3 mmol) and sodium carbonate (64 mg, 0.6 mmol) in N,N-dimethylformamide (1 mL) was added 3-(trifluoromethyl)benzene-1-sulfonyl chloride (88 mg, 0.36 mmol) in dichloromethane (1 mL), and the mixture was stirred at room temperature for 18 hours. Then ethyl acetate was added, and the mixture was washed with water (2×10 mL). The organic phase was dried over sodium sulfate and concentrated. The residue was purified by chromatography on silica gel (methanol/dichloromethane=1:15) to give the titled compound: 1H NMR (500 MHz, DMSO-d6) δ ppm 1.25 (m, 1H), 1.60-2.20 (m, 6H), 2.70-3.10 (m, 5H), 4.35-4.55 (m, 1H), 7.22 (m, 3H), 7.82 (m, 1H), 8.00 (m, 3H); MS (ESI) m/z 472 (M+H)+.

Provenance & Evidence