反应详情

4-(Pyrrolidin-1-ylmethyl)piperidine-1-carboxylic acid [4-(2-fluoro-4-nitrophenoxy)pyridin-2-yl]amide (290 mg) was dissolved in tetrahydrofuran (7 ml) and methanol (7 ml) under a nitrogen atmosphere, and then 10% palladium carbon (139 mg) was added, followed by stirring under a hydrogen atmosphere for 10 hrs. The reaction mixture was filtered to remove the catalyst, and the catalyst was washed with methanol. The filtrate was concentrated to give a residue, which was then purified by silica gel column chromatography (Fuji Silysia NH, eluent; ethyl acetate). Fractions containing a target compound were concentrated to provide a crude product of 4-(pyrrolidin-1-ylmethyl)piperidine-1-carboxylic acid [4-(4-amino-2-fluorophenoxy)pyridin-2-yl]amide (270 mg) as white foam.

1. filtrationThe reaction mixture was filtered
2. customto remove the catalyst
3. washthe catalyst was washed with methanol
4. concentrationThe filtrate was concentrated
5. customto give a residue, which
6. customwas then purified by silica gel column chromatography (Fuji Silysia NH, eluent; ethyl acetate)
7. additionFractions containing a target compound
8. concentrationwere concentrated