1-Hydroxybenzotriazole → 1-[4-(2-Chloro-phenoxy)-piperidine-1-carbonyl]-cyclopropanecarboxylic acid biphenyl-4-ylamide

Participants

Reaction Steps

HOBt (57 mg, 0.42 mol) and DIPEA (137 mg, 1.06 mmole), EDCI.HCl (82 mg, 0.42 mol) followed by 4-(2-chloro-phenoxy)-piperidine hydrochloride (105 mg, 0.42 mol) were added to a stirred solution of 1-(biphenyl-4-ylcarbamoyl)-cyclopropanecarboxylic acid (100 mg, 0.35 mmol) in DMF (2.0 mL) and the resulting mixture was stirred at ambient temperature overnight. The reaction mixture was then diluted with water. The product was extracted with ethylacetate and the organic layers were washed with brine and concentrated to afford 78 mg (46%) of 1-[4-(2-chloro-phenoxy)-piperidine-1-carbonyl]-cyclopropanecarboxylic acid biphenyl-4-ylamide. LCMS: 475.17 (M+1)+, 92.81%, 1H NMR (DMSO-d6): δ 9.8 (s, 1H), 7.8-7.5 (d, 2H), 7.7-7.6 (t, 4H), 7.5-7.4 (m, 3H), 7.4-7.2 (m, 3H), 7.0-6.9 (m, 1H), 4.7 (m, 1H), 3.8-3.6 (m, 2H), 3.5 (m, 2H), 2.0-1.8 (m, 2H), 1.7-1.6 (m, 2H), 1.4 (m, 2H), 1.3-1.2 (m, 2H).

Provenance & Evidence