反応式
C(=O)([O-])[O-].[Na+].[Na+].Cl[C:8]1[C:17]([C:18]([O:20][CH2:21][CH3:22])=[O:19])=[CH:16][C:15]2[C:10](=[CH:11][C:12]([F:24])=[C:13]([F:23])[CH:14]=2)[N:9]=1.[CH:25]1([NH:28][CH2:29][CH2:30][C:31]([O:33][CH2:34][CH3:35])=[O:32])[CH2:27][CH2:26]1.O>C1(C)C=CC=CC=1.C(O)(=O)C>[CH2:21]([O:20][C:18]([C:17]1[C:8]([N:28]([CH:25]2[CH2:26][CH2:27]2)[CH2:29][CH2:30][C:31]([O:33][CH2:34][CH3:35])=[O:32])=[N:9][C:10]2[C:15]([CH:16]=1)=[CH:14][C:13]([F:23])=[C:12]([F:24])[CH:11]=2)=[O:19])[CH3:22]参加物
反応物 4
生成物 1
試薬・触媒・溶媒 2
反応条件
- 温度
- 20 °C
実験手順
3 g of sodium carbonate are added to a solution of 3.48 g of 2-chloro-3-ethoxycarbonyl-6,7-difluoroquinoline, prepared as described in Application Example 1, and 3 g of N-cyclopropyl-N-(b-ethoxycarbonylethyl)amine in 10 cm3 of toluene. The suspension obtained is heated to reflux and then stirred for 15 hours at this temperature. The reaction mixture is then cooled to approximately 20° C. and 30 cm3 of water and 4.5 cm3 of acetic acid are thereafter added. After settling has taken place, the reaction mixture is separated and washed with twice 10 cm3 of water. The organic phase is concentrated to dryness under reduced pressure (20 kPa) at approximately 50° C. 3.3 g of crude 3-ethoxycarbonyl-6,7-difluoro-2-[N-cyclopropyl-N-(b-ethoxycarbonylethyl)amino]quinoline are obtained in the form of an oil, which is used without further purification for the subsequent step.
後処理
- customprepared
- customThe suspension obtained
- temperatureis heated
- temperatureto reflux
- customthe reaction mixture is separated
- washwashed with twice 10 cm3 of water
- concentrationThe organic phase is concentrated to dryness under reduced pressure (20 kPa) at approximately 50° C
出典と根拠
- ORDレコード
- ord-b8ce853ca604497faaa22c81f0a662de
- 出典データセット
- uspto-grants-1995_08
- 特許番号
- US05442070
関連ノート
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