1-(4-Fluorophenyl)-2-methyl-2-aminopropane → (2S,5R)-5-ethynyl-1-{N-(2-(4-fluorophenyl)-1,1-dimethylethyl)glycyl}pyrrolidine-2-carbonitrile

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Reaction Steps

To a stirred solution of (2S,5R)-1-(chloroacetyl)-5-ethynylpyrrolidine-2-carbonitrile (0.05 g, 0.25 mmol, Example 8D) in acetonitrile (3 mL) at room temperature under nitrogen was added 1-(4-fluorophenyl)-2-methyl-2-propylamine (0.09 g, 0.508 mmol). The reaction mixture was stirred for two days and then concentrated under reduced pressure. The residue was flash chromatographed with 1-2% MeOH/CH2Cl2 to provide the desired compound as a white powder. MS (DCI) m/z 328 (M+H)+; 1H NMR (300 MHz, DMSO-d6) δ 2.01-2.04 (2H, m), 2.05 (2H, s), 2.07 (2H, s), 3.03 (1H, m), 3.04 (6H, s), 3.5-4.57 (2H, m), 4.57-4.58 (1H, m), 4.58-5.59 (1H, m), 7.0-7.03 (4H, m).

Provenance & Evidence