反应详情

To a solution of 3-(Boc-amino)cyclohexanecarboxylic acid (500 mg, 2.055 mmol, 1 equivalent) in dimethylformamide (10 ml) was added O-(7-Azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (HATU, 781 mg, 2.055 mmol, 1 equivalent) and diisopropylethylamine (0.716 ml, 4.11 mmol, 2 equivalents). 2-trifluoromethyl benzylamine (360 mg, 2.055 mmol, 1 equivalent) was added and the reaction mixture was stirred at room temperature overnight. The solvent was evaporated to give the crude product, which was purified with RP-HPLC. The purified compound was treated with 50% TFA in DCM (20 ml) at room temperature for 2 hours, and then the solvents were removed in vacuo. The product (103 mg, 12% yield) was carried onto the next step without further purification. MS (ES+): m/e 301.06 [M+H]+.

1. customThe solvent was evaporated