Reaction Steps
N2-(tert-butyloxycarbonyl)-N1-{(3aR*,4R*,6aS*)-2-[3-(trifluoromethyl)benzyl]octahydrocyclopenta[c]pyrrol-4-yl}-L-leucinamide (140 mg, 0.281 mmol) from Example 137 and 2 N HCl (2.5 mL, 5.00 mmol) were combined in ether (0.5 mL), and the reaction was stirred at room temperature overnight. The solids were collected and dried to give the title compound as the hydrochloride salt: 1H NMR (500 MHz, pyridine-d5) δ ppm 8.59 (s, 0.5H), 8.48 (s, 0.5H), 7.89 (s, 0.5H), 7.83 (s, 0.5H), 7.69 (t, J=6.8, 1H), 7.60 (d, J=7.8, 1H), 7.50-7.44 (m, 1H), 4.96 (br s, 2H), 4.57-4.48 (m, 1H), 3.73 (d, J=13.2, 0.5H), 3.67 (s, 1H), 3.64 (d, J=13.2, 1H), 3.39 (d, J=13.1, 0.5H), 3.35 (d, J=13.2, 0.5H), 2.81-2.70 (m, 2H), 2.45 (dd, J=7.5, 15.3, 1H), 2.39-2.31 (m, 1H), 2.27-2.14 (m, 2H), 1.95-1.79 (m, 2.5H), 1.72-1.56 (m, 2H), 1.53-1.46 (m, 0.5H), 1.33-1.23 (m, 1.5H), 0.90 (dt, J=6.2, 14.1, 6H); MS (ESI+) m/z 398 (M+H)+.
