反应详情

A solution of 0.14 g (0.25 mmol) of [6-(2-benzyloxy-ethylamino)-3-methyl-5-(3-trifluoromethyl-phenyl)-pyridin-2-yl]-(4-pyrrolidin-1-yl-piperidin-1-yl)-methanone (intermediate 14) in 6.0 ml of MeOH was treated at RT with 0.49 ml (0.49 mmol) of hydrochloric acid (1.0 molar in MeOH), followed by 0.026 g (0.025 mmol) of Pd—C (10%). The reaction mixture was vigorously stirred in an atmosphere of hydrogen for 3 hours. After filtration through dicalite, the solvent was removed by evaporation, then the residue was dissolved in H2O/Na2CO3 and extracted twice with CH2Cl2; the organic phases were washed with water, dried over magnesium sulfate, filtered and evaporated. The residue was purified by flash column chromatography (CH2Cl2/MeOH 1:0 to 95:5) to give 0.091 g (77%) of the title compound as yellow amorphous solid. MS: 477.3 (MH+).

1. filtrationAfter filtration through dicalite
2. customthe solvent was removed by evaporation
3. dissolutionthe residue was dissolved in H2O/Na2CO3
4. extractionextracted twice with CH2Cl2
5. washthe organic phases were washed with water
6. dry with materialdried over magnesium sulfate
7. filtrationfiltered
8. customevaporated
9. customThe residue was purified by flash column chromatography (CH2Cl2/MeOH 1:0 to 95:5)