Diisobutylaluminum hydride → HCID 118037143、化合物
反応式
[Cl:1][C:2]1[CH:3]=[C:4]([C:8]2[N:13]=[C:12]3[CH2:14][CH2:15][CH2:16][C:11]3=[C:10]([NH:17][C:18]3[CH:30]=[CH:29][C:21]([O:22][CH:23]([CH3:28])[C:24](OC)=[O:25])=[CH:20][CH:19]=3)[CH:9]=2)[CH:5]=[CH:6][CH:7]=1.CC(C[AlH]CC(C)C)C>ClCCl>[ClH:1].[Cl:1][C:2]1[CH:3]=[C:4]([C:8]2[N:13]=[C:12]3[CH2:14][CH2:15][CH2:16][C:11]3=[C:10]([NH:17][C:18]3[CH:19]=[CH:20][C:21]([O:22][CH:23]([CH3:28])[CH2:24][OH:25])=[CH:29][CH:30]=3)[CH:9]=2)[CH:5]=[CH:6][CH:7]=1参加物
4
反応条件
- 温度
- 0 °C
実験手順
To a solution of methyl 2-(4-((2-(3-chlorophenyl)-6,7-dihydro-5H-cyclopenta[b]pyridin-4-yl)amino)phenoxy)propanoate (0.050 g, 0.12 mmol) in dichloromethane at 0° C. was added DIBAL (0.034 g, 0.24 mmol, 1.0 M in THF) over 15 min. Then, the mixture was stirred for 1 h at 0° C. and then warmed to rt for 15 min. After this time, the reaction was quenched with methanol, HCl (2 M) and water, and then extracted with ethyl acetate. The combined organic layer was dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated. The residue was purified by column chromatography (silica, hexanes/ethyl acetate), followed by the formation of the hydrochloride salt to form the title compound (0.033 g, 66%) as a bright yellow gum. MW=431.35. 1H NMR (DMSO-d6, 500 MHz) δ 13.97 (s, 1H), 9.73 (s, 1H), 7.86 (t, J=1.8 Hz, 1H), 7.68-7.62 (m, 2H), 7.57 (t, J=7.9 Hz, 1H), 7.31-7.26 (m, 2H), 7.06-7.01 (m, 2H), 6.86 (s, 1H), 4.49-4.39 (m, 2H), 3.61-3.41 (m, 2H), 3.17-3.09 (m, 2H), 2.88 (s, 2H), 2.26-2.17 (m, 2H), 1.21 (d, J=6.2 Hz, 3H); APCI MS m/z 395 [M+H]+.