Lithium Hydroxide → US9249085, I(ag)
反応式
[F:1][C:2]1[C:7]([CH3:8])=[CH:6][C:5]([C:9]2[CH:14]=[CH:13][CH:12]=[C:11]([F:15])[CH:10]=2)=[CH:4][C:3]=1[CH2:16][NH:17][C:18]1[C:19]([CH3:33])=[C:20]([CH:29]=[CH:30][C:31]=1[CH3:32])[O:21][CH2:22][C:23]([O:25]C(C)C)=[O:24].[Li+].[OH-]>C1COCC1>[F:1][C:2]1[C:7]([CH3:8])=[CH:6][C:5]([C:9]2[CH:14]=[CH:13][CH:12]=[C:11]([F:15])[CH:10]=2)=[CH:4][C:3]=1[CH2:16][NH:17][C:18]1[C:19]([CH3:33])=[C:20]([CH:29]=[CH:30][C:31]=1[CH3:32])[O:21][CH2:22][C:23]([OH:25])=[O:24]参加物
4
実験手順
To a solution of isopropyl 2-[3-[[2-fluoro-5-(3-fluorophenyl)-3-methyl-phenyl]methyl amino]-2,4-dimethyl-phenoxy]acetate (70 mg, 0.15 mmol, 1.0 eq) in THF (5 mL) at 0° C. was added LiOH (2M aqueous solution, 2.0 mL, 4.0 mmol). The reaction mixture was allowed to warm to room temperature and stirred for 2 h. The THF was removed in vacuo and the remaining aqueous mixture diluted with water and adjusted to pH 5 by addition of 3M HCl. The solid that precipitated was collected by filtration and dried in vacuo to give the title compound as a yellow solid (40 mg, 63%).