Methylamine → 6'-{[(ethylamino)carbonyl]amino}-N-methyl-4'-(4-phenyl-1,3-thiazol-2-yl)-3,3'-bipyridine-5-carboxamide

Participants

Reaction Steps

2-(3H-[1,2,3]triazolo[4,5-b]pyridin-3-yl)-1,1,3,3-tetramethylisouronium hexafluorophosphate(V) (73.7 mg, 0.19 mmol), DIEA (78.6 mg, 0.45 mmol) and methylamine (2M soln in THF, 0.15 mL, 0.30 mmol) were added to a solution of 6′-{[(ethylamino)carbonyl]amino}-4′-(4-phenyl-1,3-thiazol-2-yl)-3,3′-bipyridine-5-carboxylic acid (Example 132, 66.4 mg, 0.15 mmol) in DMF (1.5 mL). The resulting light yellow solution was stirred at room temperature for three hours. The reaction mixture was partitioned between water and ethyl acetate and layers separated. The organic layer was washed with saturated NaHCO3, water, brine, then dried over magnesium sulfate. The solvent was removed and the resulting residue was washed with acetonitrile and filtered to yield 33 mg of the title compound.

Provenance & Evidence