Dichloromethane → HCID 58127452, compound

Participants

Reaction Steps

A mixture of 5-fluoro-6-((tetrahydro-2H-pyran-4-yl)methyl)aminopyridin-2-yl trifluoromethanesulfonate (712 mg, 1.987 mmol), 5-chloro-2-fluoropyridin-4-ylboronic acid (697 mg, 3.97 mmol), PdCl2(dppf).CH2Cl2 adduct (162 mg, 0.199 mmol) in DME (8 mL) and 2 M aqueous Na2CO3 solution (2.6 mL, 1.987 mmol) in a sealed tube was heated at 95° C. for 3 hr. The mixture was allowed to cool to ambient temperature and was diluted with EtOAc (˜100 mL) and saturated aqueous NaHCO3 solution. The separated organic layer was washed with saturated aqueous NaHCO3 (2×), dried over Na2SO4, filtered off and concentrated in vacuo. The resulting residue was purified by column chromatography [SiO2, 40 g, EtOAc/heptane=0/100 to 25/75 over 20 min] providing 5′-chloro-2′,5-difluoro-N-((tetrahydro-2H-pyran-4-yl)methyl)-2,4′-bipyridin-6-amine as a white solid. Yield: 570 mg. LCMS (m/z): 340.1 [M+H]+; Retention time=0.99 min.

Provenance & Evidence