Diisopropylethylamine → (S)-6-[3-(2,4-Dichlorobenzylamino)-pyrrolidin-1-yl]-nicotinonitrile

Participants

Reaction Steps

Stir a mixture of (S)-(2,4-dichlorobenzyl)-pyrrolidin-3-ylamine (200 mg, 0.82 mmol), 6-chloronicotinonitrile (75 mg, 0.54 mmol) and diisopropylethylamine (140 μl, 0.82 mmol) in DMF (5 mL) at room temperature overnight. Concentrate and chromatograph on silica gel to give the title compound. Form the hydrochloride by essentially the procedure in Example 1 to give 1H NMR (300 MHz, MeOH-d4) δ 8.44 (1H, d, J=1.51 Hz), 7.95 (1H, dd, J=9.23, 2.07 Hz), 7.56-7.68 (2H, m), 7.40 (1H, dd, J=8.38, 2.17 Hz), 6.97 (1H, d, J=9.42 Hz), 4.42 (2H, d, J=3.01 Hz), 4.16-4.25 (1H, m), 4.04-4.13 (1H, m), 3.82-3.96 (2H, m), 3.63-3.77 (1H, m), 2.56-2.69 (1H, m), 2.43 (1H, m), MS (ES): 347 [M+].

Provenance & Evidence