Ammonium Chloride → 6-{[3-chloro-5-(2,2-diethoxyethoxy)pyridin-2-yl]oxy}-N-pyrazin-2-ylquinazoline-4-amine

HRID 81656

反応式

HRID 81656 の反応式
Cl[C:2]1[C:7]([Cl:8])=[CH:6][C:5]([O:9][CH2:10][CH:11]([O:15][CH2:16][CH3:17])[O:12][CH2:13][CH3:14])=[CH:4][N:3]=1.CC(C)([O-])C.[K+].[N:24]1[CH:29]=[CH:28][N:27]=[CH:26][C:25]=1[NH:30][C:31]1[C:40]2[C:35](=[CH:36][CH:37]=[C:38]([OH:41])[CH:39]=2)[N:34]=[CH:33][N:32]=1.[Cl-].[NH4+]>CN(C)C(=O)C>[Cl:8][C:7]1[C:2]([O:41][C:38]2[CH:39]=[C:40]3[C:35](=[CH:36][CH:37]=2)[N:34]=[CH:33][N:32]=[C:31]3[NH:30][C:25]2[CH:26]=[N:27][CH:28]=[CH:29][N:24]=2)=[N:3][CH:4]=[C:5]([O:9][CH2:10][CH:11]([O:15][CH2:16][CH3:17])[O:12][CH2:13][CH3:14])[CH:6]=1

参加物

6

反応物 4

HCID 25517Ammonium ChlorideHCID 23665647Potassium tert-butoxideHCID 866458962,3-Dichloro-5-(2,2-diethoxyethoxy)pyridineHCID 1363347444-(Pyrazin-2-ylamino)quinazolin-6-ol

生成物 1

HCID 684306576-{[3-chloro-5-(2,2-diethoxyethoxy)pyridin-2-yl]oxy}-N-pyrazin-2-ylquinazoline-4-amine収率 10%

試薬・触媒・溶媒 1

HCID 31374Dimethylacetamide溶媒

反応条件

温度
200 °C

実験手順

2,3-Dichloro-5-(2,2-diethoxyethoxy)pyridine (810 mg, 2.9 mmol) and potassium tert-butoxide (350 mg, 3.1 mmol) were added to an N,N-dimethylacetamide suspension (3 ml) of 4-(pyrazin-2-ylamino)quinazolin-6-ol (300 mg, 1.25 mmol), and stirred for 24 hours in a sealed tube at 200° C. The reaction solution was cooled to room temperature, aqueous saturated ammonium chloride solution was added, filtered, and washed with a mixed solution of chloroform/methanol (9:1). The obtained filtrate was extracted with chloroform, the organic layer was washed with water and saturated saline water, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The obtained residue was purified by reversed-phase liquid chromatography (YMC CombiPrep Pro C18 AS-360-cc) to obtain 6-{[3-chloro-5-(2,2-diethoxyethoxy)pyridin-2-yl]oxy}-N-pyrazin-2-ylquinazoline-4-amine (60 mg, yield: 10%) as a pale yellow solid.

後処理

  1. temperatureThe reaction solution was cooled to room temperature
  2. filtrationfiltered
  3. washwashed with a mixed solution of chloroform/methanol (9:1)
  4. extractionThe obtained filtrate was extracted with chloroform
  5. washthe organic layer was washed with water and saturated saline water
  6. dry with materialdried over anhydrous sodium sulfate
  7. concentrationconcentrated under reduced pressure
  8. customThe obtained residue was purified by reversed-phase liquid chromatography (YMC CombiPrep Pro C18 AS-360-cc)

出典と根拠

ORDレコード
ord-c6a64b49652946daa6df266cc8c90601
出典データセット
uspto-grants-2014_09
特許番号
US08846700B2

関連ノート

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