反应详情

Ethyl 5-[[1-[1-(3,4-dimethoxybenzoyl)-2-methyl-1,2,3,4-tetrahydro-4-quinolinyl]-1,2,3,4-tetrahydro-6-quinolinyl]oxy]pentanoate (100 mg, 0.17 mmol) prepared in Example 94 was dissolved in THF (3 ml), ethanol (2 ml) and water (2 ml), to which lithium hydroxide monohydrate (21 mg, 0.51 mmol) was then added and stirred at room temperature for 3 hours. The reaction mixture was neutralized with 1N hydrochloric acid and then extracted with ethyl acetate. After the organic layer was dried and concentrated, the residue was applied to silica gel column chromatography (developing solvent: ethyl acetate/hexane=4/1) to give the titled compound (33 mg, yield: 35%) as a colorless oil. (cis:trans=1:1.5)

1. extractionextracted with ethyl acetate
2. customAfter the organic layer was dried
3. concentrationconcentrated