Reaction Steps
(S)-4-methyl-2-morpholino-N-((3aS,4R,6aR)-octahydrocyclopenta[c]pyrrol-4-yl)pentanamide (191 mg, 0.617 mmol), triethylamine (0.129 mL, 0.926 mmol), and 3-(trifluoromethyl)benzene-1-sulfonyl chloride (0.109 mL, 0.679 mmol) were combined in dichloromethane (0.5 mL). The reaction was stirred at room temperature for 3 hours. The crude material was purified by silica gel chromatography using 1-10% methanol (2 N ammonia)/dichloromethane to give the title compound: 1H NMR (500 MHz, pyridine-d5) δ ppm 8.44 (d, J=6.2, 1H), 8.38 (s, 1H), 8.19 (d, J=7.9, 1H), 7.92 (d, J=7.8, 1H), 7.72 (t, J=7.9, 1H), 4.27-4.20 (m, 1H), 3.90 (dd, J=2.3, 10.0, 1H), 3.76-3.67 (m, 4H), 3.20 (ddd, J=3.9, 9.4, 10.9, 3H), 2.97 (dd, J=7.1, 9.6, 1H), 2.78-2.72 (m, 2H), 2.72-2.67 (m, 2H), 2.62-2.53 (m, 2H), 1.94 (dt, J=6.2, 12.1, 1H), 1.89-1.77 (m, 3H), 1.64-1.54 (m, 2H), 1.30 (ddt, J=6.5, 9.3, 12.8, 1H), 0.92 (d, J=4.4, 3H), 0.91 (d, J=4.4, 3H); MS (ESI+) m/z 518 (M+H)+.