Water → N-[6-(4-amino-2-fluorophenoxy)-3-methylimidazo[1,2-a]pyridin-2-yl]cyclopropanecarboxamide

A mixed solution of N-[6-(2-fluoro-4-nitrophenoxy)-3-methylimidazo[1,2-a]pyridin-2-yl]cyclopropanecarboxamide (80 mg, 0.216 mmol), reduced iron (64 mg, 1.08 mmol) and ammonium chloride (116 mg, 2.16 mmol) in ethanol (2 mL)/water (0.5 mL) was stirred at 80° C. for 3 hr. The reaction mixture was diluted with ethyl acetate and filtered through celite. Water was added to the filtrate, and the mixture was extracted 3 times with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and filtered. The solvent was evaporated under reduced pressure to give the title compound (60 mg, 82%) as a slightly yellow solid.

1. filtrationfiltered through celite
2. additionWater was added to the filtrate
3. extractionthe mixture was extracted 3 times with ethyl acetate
4. washThe organic layer was washed with saturated brine
5. dry with materialdried over anhydrous magnesium sulfate
6. filtrationfiltered
7. customThe solvent was evaporated under reduced pressure

ORD record

ord-25ec52f32e734d4ab9442ebfd89b05d0

Source dataset

uspto-grants-2013_05

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08445509B2