Cyclopropanecarboxylic acid → HCID 91758313, compound

Participants

Reaction Steps

Add 1-hydroxy-7-azabenzotriazole (281 mg, 2.03 mmol) and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (430 mg, 2.21 mmol) to a slurry of cyclopropanecarboxylic acid (161 μL, 2.03 mmol), (2S)-2-amino-1-[4-[2-(4-amino-6-chloro-2-methyl-pyrimidin-5-yl)ethyl]-1-piperidyl]propan-1-one (600 mg, 1.84 mmol) in anhydrous THF (12 mL). Then add TEA (770 μL, 5.52 mmol) and stir the resulting mixture at RT for 12 h. Dilute the reaction mixture with EtOAc (10 mL), filter over diatomaceous earth, and concentrate the filtrate in vacuo. Purify the resulting residue by mass-guided HPLC reverse phase chromatography (Agilent® 1200 LCMS and MSD mass spectrometer, 75×30 mm Phenomenex Gemini-NX®, 5μ particle size column with a 10×20 mm guard, 12-46% ACN in 10 mM aqueous ammonium bicarbonate solution, pH 10, gradient over 9 min) to obtain the title compound as a colorless glass (572 mg, 78%). LC-ESMS m/z (35Cl/37Cl) 394.2/396.2 (M+H).

Provenance & Evidence