1-[(2'-Carbomethoxybiphenyl-4-yl)methyl]-2-butyl-4-chloro-5-(2-methoxyethoxymethoxymethyl)imidazole → 1-[(2'-Carboxybiphenyl-4-yl)methyl]-2-butyl-4-chloro-5-(2-methoxyethoxymethoxymethyl)imidazole
반응식
[C:1]([C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][C:6]=1[C:11]1[CH:16]=[CH:15][C:14]([CH2:17][N:18]2[C:22]([CH2:23][O:24][CH2:25][O:26][CH2:27][CH2:28][O:29][CH3:30])=[C:21]([Cl:31])[N:20]=[C:19]2[CH2:32][CH2:33][CH2:34][CH3:35])=[CH:13][CH:12]=1)([O:3]C)=[O:2].C[S-].[K+]>CN(C)C=O>[C:1]([C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][C:6]=1[C:11]1[CH:16]=[CH:15][C:14]([CH2:17][N:18]2[C:22]([CH2:23][O:24][CH2:25][O:26][CH2:27][CH2:28][O:29][CH3:30])=[C:21]([Cl:31])[N:20]=[C:19]2[CH2:32][CH2:33][CH2:34][CH3:35])=[CH:13][CH:12]=1)([OH:3])=[O:2]참가 물질
반응물 2
생성물 1
시약·촉매·용매 1
실험 절차
A solution of 3.15 g of 1-[(2'-carbomethoxybiphenyl-4-yl)methyl]-2-butyl-4-chloro-5-(2-methoxyethoxymethoxymethyl)imidazole and 2.77 g of potassium methanethiolate in 125 mL of dimethylformamide was stirred at 125° for 4 hours. After cooling the solvent was removed in vacuo, and the residue was dissolved in water. The resulting aqueous solution was washed with diethyl ether, adjusted to pH 3 employing 10% hydrochloric acid, and extracted with methylene chloride. The combined organic layers were washed with brine, dried over anhydrous sodium sulfate, filtered, and concentrated. The crude product was recrystallized from chlorobutane to afford 2.45 g of 1-[(2'-carboxybiphenyl-4-yl)methyl]-2-butyl-4-chloro-5-(2-methoxyethoxymethoxymethyl)imidazole. NMR (200 MHz, CDCl3) δ7.95 (d, 1H); 7.57 (t, 1H); 7.46 (t, 1H); 7.38 (m, 3H); 7.05 (d, 2H); 5.22 (s, 2H); 4.64 (s, 2H); 4.48 (s, 2H); 3.58 (m, 4H); 3.40 (s, 3H); 2.54 (t, 2H); 1.60 (quint., 2H); 1.32 (sext., 2H); 0.84 (t, 3H).
후처리
- temperatureAfter cooling the solvent
- customwas removed in vacuo
- dissolutionthe residue was dissolved in water
- washThe resulting aqueous solution was washed with diethyl ether
- extractionextracted with methylene chloride
- washThe combined organic layers were washed with brine
- dry with materialdried over anhydrous sodium sulfate
- filtrationfiltered
- concentrationconcentrated
- customThe crude product was recrystallized from chlorobutane
출처 및 근거
- ORD 기록
- ord-71e9f008e0f845d5b25e9473ee271165
- 출처 데이터셋
- uspto-grants-1992_08
- 특허 번호
- US05138069
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