[CH:1]([C:4]1[CH:5]=[C:6]([C:12]([OH:14])=O)[O:7][C:8]=1[CH:9]([CH3:11])[CH3:10])([CH3:3])[CH3:2].[NH2:15][C:16]1[CH:21]=[CH:20][C:19]([CH2:22][CH2:23][C:24]([O:26][CH3:27])=[O:25])=[CH:18][CH:17]=1>>[CH:1]([C:4]1[CH:5]=[C:6]([C:12]([NH:15][C:16]2[CH:17]=[CH:18][C:19]([CH2:22][CH2:23][C:24]([O:26][CH3:27])=[O:25])=[CH:20][CH:21]=2)=[O:14])[O:7][C:8]=1[CH:9]([CH3:10])[CH3:11])([CH3:2])[CH3:3]In the same manner as that of Example 2, 4,5-diisopropylfuran-2-carboxylic acid (90 mg, 0.459 mmol) was condensed with methyl 3-[4-aminophenyl]propionate, and the resultant was purified by silica gel chromatography [benzene-ethyl acetate (14:1)] to obtain methyl 3-[4-[(4,5-diisopropylfuran-2-carbonyl)amino]phenyl]propionate (138 mg, 84%) as colorless needles.
Wird geladen…