Acetic Acid → 2,2-dicyclohexyl-N-{(3aS,4S,6aR)-2-[3-(trifluoromethyl)benzyl]octahydrocyclopenta[c]pyrrol-4-yl}acetamide

Participants

Reaction Steps

2,2-Dicyclohexyl-N-[(3aS,4S,6aR)-octahydrocyclopenta[c]pyrrol-4-yl]acetamide (154 mg, 0.463 mmol) from Example 53 and 3-(trifluoromethyl)benzaldehyde (0.062 mL, 0.463 mmol) were combined in dichloromethane (5 mL), and then 2 mL of acetic acid was added. The reaction was stirred at room temperature for 20 minutes, and then PS-cyanoborohydride (396 mg, 0.926 mmol) was added. The reaction was stirred at room temperature overnight, then filtered and the resin was washed with dichloromethane. The solvent was removed in vacuo, and the crude material was purified using a silica gel cartridge (Analogix®, Burlington, Wis., RS-25) eluting with 1-10% methanol (2 N ammonia)/dichloromethane to give the title compound: 1H NMR (500 MHz, pyridine-d5) δ ppm 7.73 (s, 1H), 7.66 (d, J=7.7, 1H), 7.56 (s, 1H), 7.50 (t, J=7.7, 1H), 4.51-4.43 (m, 1H), 3.55 (d, J=12.9, 1H), 3.46 (d, J=12.9, 1H), 2.75 (d, J=8.6, 2H), 2.52-2.41 (m, J=8.5, 19.1, 2H), 2.34-2.29 (m, 1H), 2.20 (dd, J=7.7, 9.8, 1H), 2.14 (s, 3H, OAc), 1.96-1.54 (m, 15H), 1.49-1.05 (m, 12H), 1.03-0.93 (m, J=11.7, 21.1, 1H); MS (ESI+) m/z 491 (M+H)+.

Provenance & Evidence