Lithium Hydroxide → 2-(2-Oxo-3,3-diphenylpiperidin-1-yl)acetic acid

反応式

[O:1]=[C:2]1[C:7]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[CH2:6][CH2:5][CH2:4][N:3]1[CH2:20][C:21]([O:23]CC)=[O:22].[OH-].[Li+]>C(O)C.O>[O:1]=[C:2]1[C:7]([C:14]2[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=2)([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[CH2:6][CH2:5][CH2:4][N:3]1[CH2:20][C:21]([OH:23])=[O:22]

参加物

反応条件

温度: 80 °C

実験手順

The product from Example 68D (1.70 g, 5.04 mmol) was dissolved in ethanol (40 mL). A solution of lithium hydroxide (1.20 g, 50.10 mmol) in water (10 mL) was added, and the reaction was heated to 80° C. for 2 hours. The reaction mixture was cooled to room temperature, concentrated, neutralized with 2 N HCl, and then diluted with ethyl acetate. The organic layer was washed with water and brine, dried over magnesium sulfate, filtered, and then concentrated to give the title compound. MS (DCI+) m/z 310 (M+H)+.