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[O-]CC.[Na+].[Cl:5][C:6]1[CH:25]=[CH:24][C:9]([C:10]([NH:12][CH:13]([C:19]([O:21][CH2:22][CH3:23])=[O:20])[C:14]([O:16][CH2:17][CH3:18])=[O:15])=[O:11])=[CH:8][CH:7]=1.Br[CH2:27][C:28]1[C:37]2[C:32](=[CH:33][CH:34]=[CH:35][CH:36]=2)[NH:31][C:30](=[O:38])[CH:29]=1>C(O)C>[Cl:5][C:6]1[CH:7]=[CH:8][C:9]([C:10]([NH:12][C:13]([C:14]([O:16][CH2:17][CH3:18])=[O:15])([CH2:27][C:28]2[C:37]3[C:32](=[CH:33][CH:34]=[CH:35][CH:36]=3)[NH:31][C:30](=[O:38])[CH:29]=2)[C:19]([O:21][CH2:22][CH3:23])=[O:20])=[O:11])=[CH:24][CH:25]=1참가 물질
실험 절차
100 ml of anhydrous ethyl alcohol and 2.23 g of sodium ethoxide (96%) were added to a 500 ml flask, and the mixture was cooled down to below 5° C. After adding 7.91 g of diethyl 4-chlorobenzamidomalonate, the resulting solution was stirred at below 5° C. for one hour. 5.00 g of 4-bromomethylquinolinon was added to the mixture and the resulting solution was stirred at the room temperature for 16 hours to produce an intermediate, ethyl 2-(4-chlorobenzoylamino)-2-ethoxycarbonyl-3-[2(1H)-quinolinon-4-yl]propionate. After the completion of the reaction, 2.71 g of sodium hydroxide (93%) was added to the above solution, which was then stirred at the room temperature for about 2 hours. Subsequently, the resulting solution was warmed to about 60° C. and stirred for 4 hours to complete the reaction. The concentrated hydrochloric acid were added to the residue for crystallization. The crystal thus obtained was filtered and then subjected to recrystallization with DMF and water to yield 7.15 g (91.78%) of 2-(4-chlorobenzoylamino)-3-[2(1H)-quinolinon-4-yl]propionic acid.
후처리
- temperaturethe mixture was cooled down to below 5° C
- stirringthe resulting solution was stirred at the room temperature for 16 hours
출처 및 근거
- ORD 기록
- ord-61b7e6d74df349ada2f0f8ff582ab5c3
- 출처 데이터셋
- uspto-grants-2004_01
- 특허 번호
- US06680386B2
연결된 노트
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