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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
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HRID 1157421 반응식
[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]
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참가 물질

6

반응물 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

생성물 1

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

시약·촉매·용매 2

HCID 8857
Ethyl Acetate
용매
HCID 13387N-methyl-2-pyrrolidone용매

실험 절차

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)+.

후처리

  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

출처 및 근거

ORD 기록
ord-09613ba03eaa4f29a1b6e16cc7121008
출처 데이터셋
uspto-grants-2010_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07807684B2

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