1-Hydroxybenzotriazole → HCID 178440813, compound

Participants

Reaction Steps

To a stirred solution of [(5-phenyl-1H-pyrazole-3-carbonyl)-amino]-acetic acid (0.088 g, 0.00036 mol) in DMF (2 mL) was added DIPEA (0.211 g, 0.0016 mol), HOBt (0.048 g, 0.00036 mol) and EDCI.HCl (0.125 g, 0.000655 mol) at ambient temperature. After 2 minutes (2-tert-butyl-phenyl)-piperidin-4-yl-amine dihydrochloride (0.1 g, 0.00033 mol) was added and the resulting mixture was stirred overnight. The reaction mixture was then diluted with cold water. The resulting precipitate was isolated by filtration and dried to afford 0.07 g (49%) of 5-phenyl-1H-pyrazole-3-carboxylic acid {2-[4-(2-tert-butyl-phenylamino)-piperidin-1-yl]-2-oxo-ethyl}-amide. LCMS: 460.26 (M+1)+, 89.75%, 1H NMR (DMSO-d6): δ 13.8 (s, 1H), 8.1 (s, 1H), 7.8 (d, 2H), 7.6-7.4 (m, 3H), 7.2-7.0 (m, 3H), 6.8 (d, 1H), 6.6 (t, 1H), 4.3 (d, 1H), 4.2 (d, 2H), 3.9 (m, 2H), 3.7 (s, 1H), 3.2 (t, 1H), 2.8 (t, 1H), 2.0 (t, 3H), 1.4 (s, 9H), 1.0 (bs, 1H).

Provenance & Evidence