Potassium Carbonate → HCID 86708746, compound

Participants

Reaction Steps

To a solution of 2-(5-{6-[4-(2-{4,4-Difluoro-1-[2-methoxycarbonylamino-2-(tetrahydro-pyran-4-yl)-acetyl]-pyrrolidin-2-yl}-3H-imidazol-4-yl)-phenyl]-naphthalen-2-yl}-1H-imidazol-2-yl)-pyrrolidine-1-carboxylic acid benzyl ester (0.13 g, 0.15 mmol) in EtOH (3.5 mL) was added Palladium on carbon (10%, 0.08 g, 0.08 mmol) and Potassium Carbonate (0.07 g, 0.48 mmol). The slurry was stirred at room temperature under an atmosphere of H2 for 3 h. The slurry was filtered through celite and washed with EtOH. The filtrate was concentrated to an oil and diluted with CH2Cl2 (3 mL) and filtered an additional time. Methoxycarbonylamino-phenyl-acetic acid (0.05 g, 0.03 mmol) and Potassium Phosphate (0.04 g, 0.16 mmol) were added and the resulting slurry was cooled to 0° C. (external, ice). COMU (0.09 g, 0.02 mmol) was added and the reaction was stirred at 0° C. for 2 h. The slurry was diluted with CH2Cl2 and filtered through celite. The filtrate was concentrated and purified by preparative HPLC (Gemini, 15→50% MeCN in H2O (0.1% TFA)) to provide to provide [2-(4,4-Difluoro-2-{5-[4-(6-{2-[1-(2-methoxycarbonylamino-2-phenyl-acetyl)-pyrrolidin-2-yl]-3H-imidazol-4-yl}-naphthalen-2-yl)-phenyl]-1H-imidazol-2-yl}-pyrrolidin-1-yl)-2-oxo-1-(tetrahydro-pyran-4-yl)-ethyl]-carbamic acid methyl ester (0.03 g, 17%). LCMS-ESI+: calc'd for C49H50F2N8O7: 900.38 (M+); Found: 901.4 (M+H+).

Provenance & Evidence