1-Hydroxybenzotriazole → HCID 57874516, compound

Participants

Reaction Steps

To a stirred solution of N-biphenyl-4-yl-malonamic acid (0.15 g, 0.00059 mole) in DMF (4 mL) was added DIPEA (0.226 g, 0.00176 mole), HOBt (0.095 g, 0.00071 mole) and EDCI.HCl (0.134 g, 0.00071 mole). After 2 minutes 4-(2-bromo-phenylsulfanyl)-piperidine hydrochloride (0.21 g, 0.00071 mole) was added and the resulting mixture was stirred overnight. The reaction mixture was then diluted with cold water and the resulting precipitate was isolated by filtration. Purification by column chromatography using silica gel 60-120 mesh (60% ethyl acetate in hexane) afforded 0.153 g (51%) of N-biphenyl-4-yl-3-[4-(2-bromo-phenylsulfanyl)-piperidin-1-yl]-3-oxo-propionamide. LC-MS purity: 509.08 (M+1)+, 87.3%, 1H NMR (DMSO-d6): δ 10.2 (s, 1H), 7.82-7.6 (m, 6H), 7.48-7.36 (m, 3H), 7.36-7.28 (m, 1H), 7.22-7.12 (m, 1H), 5.6-5.2 (d, 1H), 4.25 (d, 1H), 3.7 (m, 1H), 3.55 (s, 2H), 2.95 (m, 1H), 2.0 (m, 2H), 1.7-1.5 (m, 1H), 1.5-1.35 (m, 1H).

Provenance & Evidence