Hydrochloric Acid → HCID 69838978, compound

Participants

Reaction Conditions

Reaction Steps

63 mg of 1-(2-pyrazinyl)-4-amino-piperidine (0.32 mmol) and 62 mg (2S)-1-(2-chloroacetyl)-4,4-difluoro-2-pyrrolidine carbonitrile (0.32 mmol) and 285 mg of polymer-bound 2-tert-butylimino-2-diethylamino-1,3-dimethyl-perhydro-1,3,2-diazaphosphorine (PBEMP) (0.73 mmol) are dissolved in 20 ml dry acetonitrile and stirred at 55° C. for 8 hours. The resin is removed by filtration, the filtrate is concentrated by vacuum and the residue is purified by column chromatography using chloroform—methanol (9:1) as eluent to result an oil, which is treated with hydrochloric acid in diethylether result in 83 mg (60%) of title compound, as white crystals. M.p.: 158-160° C. 1H-NMR (400 MHz, DMSO-d6): δ 1.54 (m, 2H), 2.15 (m, 2H), 2.80-2.95 (m, 4H), 4.20-4.25 (m, 4H), 4.55 (d, 2H,), 5.20 (t, 1H), 7.00 (d, 1H), 7.87 (dd, 1H), 8.50 (d, 1H); 9.38 (br, 2H).

Provenance & Evidence