Benzenamine, 3,5-bis(trifluoromethyl)- → N-(3,5-bis(trifluoromethyl)phenyl)-2-(2,6-dimethylphenyl)-1-oxooctahydrocyclopenta[c]pyrrole-3a-carboxamide

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-(2,6-dimethylphenyl)-1-oxooctahydrocyclopenta[c]pyrrole-3a-carboxylic acid (86 mg, 0.3 mmol) and diisopropylethyl amine (104 μL, 0.6 mmol) in THF, methanesulfonyl chloride (32 μL, 0.4 mmol) was added. The mixture was treated with 3,5-bis(trifluoromethyl)aniline (137 mg, 0.6 mmol) and heated at 75° C. for 3 h. After evaporating the solvent, the crude product was applied on C18 preparative HPLC column and eluted with acetonitrile/water solvent system (5-80% acetonitrile gradient with 0.1% TFA). After neutralization and solvent evaporation of the combined product containing fractions, 80 mg of N-(3,5-bis(trifluoromethyl)phenyl)-2-(2,6-dimethylphenyl)-1-oxooctahydrocyclopenta[c]pyrrole-3a-carboxamide was obtained (53% yield). 1H NMR (400 MHz, CDCl3) 1.72-1.84 (m, 1H), 1.94-2.04 (m, 1H), 2.09 (s, 3H), 2.18 (s, 3H), 2.24-2.40 (m, 4H), 3.43 (d, 1H, J=11 Hz), 3.52-3.58 (m, 1H, 4.06 (d, 1H, J=11 Hz), 7.00-7.17 (m, 3H), 7.61 (s, 1H) 8.13 (s, 2H), 8.61 (s, 1H). LC-MS: Rt (retention time)=2.99 min, MS: (ES) m/z 485 (M+H+).

Provenance & Evidence