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Cesium carbonate → tert-butyl3-{[4-chloro-3-(3-chloro-5-cyanophenoxy)-5-fluorophenoxy]methyl}-6-fluoro-1H-pyrazolo[3,4-b]pyridine-1-carboxylate

HRID 1157421
ノート
印刷プレビュー

反応式

HRID 1157421 の反応式
[Cl:1][C:2]1[CH:3]=[C:4]([CH:7]=[C:8]([O:10][C:11]2[CH:16]=[C:15]([OH:17])[CH:14]=[C:13]([F:18])[C:12]=2[Cl:19])[CH:9]=1)[C:5]#[N:6].C([O-])([O-])=O.[Cs+].[Cs+].Br[CH2:27][C:28]1[C:36]2[C:31](=[N:32][C:33]([F:37])=[CH:34][CH:35]=2)[N:30]([C:38]([O:40][C:41]([CH3:44])([CH3:43])[CH3:42])=[O:39])[N:29]=1>CN1C(=O)CCC1.CCOC(C)=O>[C:41]([O:40][C:38]([N:30]1[C:31]2=[N:32][C:33]([F:37])=[CH:34][CH:35]=[C:36]2[C:28]([CH2:27][O:17][C:15]2[CH:14]=[C:13]([F:18])[C:12]([Cl:19])=[C:11]([O:10][C:8]3[CH:7]=[C:4]([C:5]#[N:6])[CH:3]=[C:2]([Cl:1])[CH:9]=3)[CH:16]=2)=[N:29]1)=[O:39])([CH3:44])([CH3:43])[CH3:42]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 10796Cesium carbonateHCID 25132591tert-butyl 3-(bromomethyl)-6-fluoro-1H-pyrazolo[3,4-b]pyridine-1-carboxylateHCID 445509693-Chloro-5-(2-chloro-3-fluoro-5-hydroxyphenoxy)benzonitrile

生成物 1

HCID 44549123tert-butyl3-{[4-chloro-3-(3-chloro-5-cyanophenoxy)-5-fluorophenoxy]methyl}-6-fluoro-1H-pyrazolo[3,4-b]pyridine-1-carboxylate収率 85%

試薬・触媒・溶媒 2

HCID 8857
Ethyl Acetate
溶媒
HCID 13387N-methyl-2-pyrrolidone溶媒

実験手順

Under a nitrogen atmosphere, 3-chloro-5-(2-chloro-3-fluoro-5-hydroxyphenoxy)benzonitrile (50-5) (150 mg, 0.503 mmol) was dissolved in NMP (4 mL, 0.1 M). Next, Cs2CO3 (164 mg, 0.503 mmol) was added and the reaction was allowed to stir at room temperature for 15 minutes. Then, tert-butyl-3-(bromomethyl)-6-fluoro-1H-pyrazolo[3,4-b]pyridine-1-carboxylate (37-5) (166 mg, 0.503 mmol, prepared using the procedure set forth in Example 37) was added to the reaction. The reaction was stirred at room temperature for 2 hours. It was then diluted with EtOAc (4 mL). It was partitioned with water (3 mL) and then extracted with EtOAc (3×4 mL). The organic extracts were then washed with water (3×4 mL) and brine (1×4 mL), dried over sodium sulfate and concentrated. Silica gel chromatography (1%-20% EtOAc/Hexanes) gave tert-butyl3-{[4-chloro-3-(3-chloro-5-cyanophenoxy)-5-fluorophenoxy]-methyl}-6-fluoro-1H-pyrazolo[3,4-b]pyridine-1-carboxylate (50-6) (230 mg, 85%). LCMS (ES) m/z 446.9 (M-BOC)+.

後処理

  1. additionwas added to the reaction
  2. stirringThe reaction was stirred at room temperature for 2 hours
  3. customIt was partitioned with water (3 mL)
  4. extractionextracted with EtOAc (3×4 mL)
  5. washThe organic extracts were then washed with water (3×4 mL) and brine (1×4 mL)
  6. dry with materialdried over sodium sulfate
  7. concentrationconcentrated

出典と根拠

ORDレコード
ord-09613ba03eaa4f29a1b6e16cc7121008
出典データセット
uspto-grants-2010_10
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07807684B2

反応ノート

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