Acetic Acid → 3-{2-Chloro-4-fluoro-5-[2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-(methoxycarbonyl)methoxypyridine

HRID 1862229ノート

反応式

HRID 1862229 の反応式
[Cl:1][C:2]1[C:7]([O:8][C:9]2[C:10]([O:15][CH2:16][C:17]([O:19][CH3:20])=[O:18])=[N:11][CH:12]=[CH:13][CH:14]=2)=[CH:6][C:5]([NH:21][C:22](=[O:30])[CH2:23][C:24]([C:26]([F:29])([F:28])[F:27])=O)=[C:4]([F:31])[CH:3]=1.C(O)(=O)C.[O-:36][C:37]#[N:38].[K+]>O>[Cl:1][C:2]1[CH:3]=[C:4]([F:31])[C:5]([N:21]2[C:22](=[O:30])[CH:23]=[C:24]([C:26]([F:29])([F:28])[F:27])[NH:38][C:37]2=[O:36])=[CH:6][C:7]=1[O:8][C:9]1[C:10]([O:15][CH2:16][C:17]([O:19][CH3:20])=[O:18])=[N:11][CH:12]=[CH:13][CH:14]=1

参加物

5

反応物 3

HCID 176Acetic AcidHCID 11378442Potassium cyanateHCID 86593477N-[4-chloro-2-fluoro-5-{2-(methoxycarbonyl)methoxy-3-pyridyloxy}phenyl]tri fluoroacetoacetamide

生成物 1

HCID 186192103-{2-Chloro-4-fluoro-5-[2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-(methoxycarbonyl)methoxypyridine収率 40.1%

試薬・触媒・溶媒 1

HCID 962Water溶媒

反応条件

温度
50 °C

実験手順

To a mixture of 0.71 g of N-[4-chloro-2-fluoro-5-{2-(methoxycarbonyl)methoxy-3-pyridyloxy}phenyl]trifluoroacetoacetamide and 2 ml of acetic acid, 0.33 g of potassium cyanate was added, and the mixture was stirred at 50° C. for 1 hour, then, at 110° C. for 1.5 hours. After cooling, water was added to the reaction mixture and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium bicarbonate solution, and saturated saline, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to obtain 0.30 g of 3-{2-chloro-4-fluoro-5-[2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-(methoxycarbonyl)methoxypyridine.

後処理

  1. additionwas added
  2. waitat 110° C. for 1.5 hours
  3. temperatureAfter cooling
  4. extractionthe mixture was extracted with ethyl acetate
  5. washThe organic layer was washed with saturated aqueous sodium bicarbonate solution, and saturated saline
  6. dry with materialdried over anhydrous magnesium sulfate
  7. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-f765555b42c04d43bcb0cd877b626fb8
出典データセット
uspto-grants-2003_03
特許番号
US06537948B1

反応ノート

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