Diisopropylethylamine → HCID 57898919, compound

Participants

Reaction Conditions

Reaction Steps

A vial was charged with 2-(5-bromo-2-(4-phenethylthiazol-2-ylamino)pyridin-4-yl)acetic acid (0.0863 g, 0.2063 mmol) in 5 ml of DMF and DIEA (0.03953 ml, 0.2269 mmol), and tetramethylfluoroformamidinium hexafluorophosphate (TFFH) (0.060 g, 0.227 mmol) were added consecutively. The mixture was stirred for 30 minutes and N-hydroxyacetamidine (0.0168 g, 0.227 mmol) was added. The mixture was heated at 100° C. overnight. The mixture was then cooled, diluted with dichloromethane, and washed with aqueous sodium bicarbonate, dried over magnesium sulfate, filtered and evaporated. The residue was purified by silica gel chromatography, eluting with 20% ethyl acetate/hexane to provide N-(5-bromo-4-((3-methyl-1,2,4-oxadiazol-5-yl)methyl)pyridin-2-yl)-4-phenethylthiazol-2-amine (11 mg, 11.58% yield) as a yellow solid. 1H NMR (CDCl3) δ 2.37 (s, 3H), 2.94-2.98 (m, 4H), 4.25 (s, 2H), 6.39 (s, 1H), 6.89 (s, 1H), 7.14-7.26 (m, 5H), 8.45 (s, 1H).

Provenance & Evidence