Dimethyl Sulfoxide → ((1S,3R)-3-(5'-chloro-6-(3-fluorobenzylamino)-2,4'-bipyridin-2'-yl-amino)cyclopentyl)methanol

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Reaction Steps

To 5′-chloro-2′-fluoro-N-(3-fluorobenzyl)-2,4′-bipyridin-6-amine (100 mg, 0.301 mmol) was added DMSO (1 ml), ((1S,3R)-3-aminocyclopentyl)methanol (104 mg, 0.903 mmol) and TEA (0.21 ml, 1.51 mmol). The crude mixture was stirred at 100° C. for 20 hours, followed by LCMS. The crude reaction mixture was cooled, was diluted with EtOAc (60 mL), washed H2O (60 mL×2), brine (60 mL), dried over Na2SO4, and reduced. The crude was adsorbed onto silica gel, and purified by silica gel chromatography, 40-80% EtOAc/Heptane, 12 g ISCO silica column, resulting in ((1S,3R)-3-(5′-chloro-6-(3-fluorobenzylamino)-2,4′-bipyridin-2′-yl-amino)cyclopentyl)methanol (101 mg, 0.237 mmol). LCMS (m/z): 427.1 (MH+). retention time=0.69 min.

Provenance & Evidence