4-Cyanobenzoic acid → HCID 57345433, compound

Participants

Reaction Steps

4-cyanobenzoic acid (65.0 mg, 0.44 mmol) in DCM (2 mL) was treated with DIPEA (0.231 mL, 1.32 mmol) and TBTU (142 mg, 0.44 mmol) and the suspension was stirred for 10 min. A 125 mg/mL solution of (S)-1-(2-cyclohexyl-2-(methylamino)ethyl)azetidin-3-ol (Compound G2.3) (125 mg, 0.44 mmol) in DCM (1 mL) was added and the reaction was stirred at ambient temperature overnight. The reaction was washed with 8% aq. sol. of NaHCO3 and concentrated. The residue was dissolved in DMSO (0.4 mL) and filtered through a syringe filter. The residue was purified by HPLC to give the title compound (73.6 mg, 49%). Mixture of rotamers. 1H NMR (600 MHz, DMSO-d6) δ 0.53-0.70, 0.89-1.81, 2.43-2.59, 2.64-2.78, 3.03, 3.28-3.31, 3.43-3.54, 4.11-4.30, 5.23, 5.26, 7.48, 7.61, 7.87-7.94. HRMS (M+H)+: calculated 342.2181. found 342.2193

Provenance & Evidence