Potassium Phosphate, Tribasic → N-(1-{[4-cyclopropyl-2-(trifluoromethyl)phenyl]methyl}-1H-pyrazol-3-yl)-3-fluoro-4-pyridinecarboxamide

Participants

Reaction Conditions

Reaction Steps

To a solution of 3-fluoro-N-(1-{[4-iodo-2-(trifluoromethyl)phenyl]methyl}-1H-pyrazol-3-yl)-4-pyridinecarboxamide (for a preparation see Example 88)(40 mg, 0.082 mmol) in toluene (2 ml) was added potassium phosphate tribasic (52 mg, 0.245 mmol, Aldrich), tricyclohexyl phosphine (7 mg, 0.025 mmol, Aldrich), cyclopropyl boronic acid (21 mg, 0.244 mmol, Fluorochem), water (0.1 ml) and then palladium (II) acetate (6 mg, 0.027 mmol. ABCR). The resulting slight suspension was heated to 100° C. and stirred under nitrogen overnight. The reaction mixture was partitioned between DCM (10 ml) and water (10 ml). The phases were separated using a hydrophobic frit and the aqueous phase washed with DCM (10 ml). The organic phases were combined and the solvent removed in vacuo. The residue was dissolved in 1:1 MeOH:DMSO (1 ml) and purified by MDAP on Sunfire C18 column (Method B) using Acetonitrile-Water with a Formic acid modifier. The solvent was evaporated in vacuo to give the title compound as a white solid (16 mg); LCMS: (System 4) MH+=405, tRET=2.98 min.

Provenance & Evidence