Tetrahydrofuran → Diethyl 2-(3'-{[methyl-(1-phenylmethanoyl)-amino]methyl}biphenyl-4-ylmethyl)malonate
反応式
[CH3:1][N:2]([CH2:11][C:12]1[CH:13]=[C:14]([C:18]2[CH:23]=[CH:22][C:21]([CH:24]=[C:25]([C:31]([O:33][CH2:34][CH3:35])=[O:32])[C:26]([O:28][CH2:29][CH3:30])=[O:27])=[CH:20][CH:19]=2)[CH:15]=[CH:16][CH:17]=1)[C:3]([C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)=[O:4].C1COCC1>CO>[CH3:1][N:2]([CH2:11][C:12]1[CH:13]=[C:14]([C:18]2[CH:19]=[CH:20][C:21]([CH2:24][CH:25]([C:31]([O:33][CH2:34][CH3:35])=[O:32])[C:26]([O:28][CH2:29][CH3:30])=[O:27])=[CH:22][CH:23]=2)[CH:15]=[CH:16][CH:17]=1)[C:3]([C:5]1[CH:6]=[CH:7][CH:8]=[CH:9][CH:10]=1)=[O:4]参加物
4
実験手順
700 mg (1.5 mmol) of diethyl 2-(3′-{[methyl-(1-phenylmethanoyl)amino]methyl}biphenyl-4-ylmethylene)malonate, 7 ml of THF and 1 ml of methanol are introduced into a three-necked flask under a stream of nitrogen. The reaction medium is degassed, 80 mg of palladium-on-charcoal (5%) are introduced and the mixture is hydrogenated under atmospheric pressure at room temperature for 20 hours. The reaction medium is filtered through Celite and evaporated. The residue obtained is purified by chromatography on a column of silica eluted with a mixture of heptane and ethyl acetate (80/20). After evaporation of the solvents, 450 mg (63%) of the desired product are collected.