Pyridine → 7-[2-(3-chloro-pyridin-2-yl)-5-trifluoromethyl-2H-pyrazol-3-yl]-1H-8-oxa-1,6-diaza-cyclopenta[a]naphthalen-9-one

HRID 245605ノート

反応式

HRID 245605 の反応式
[NH2:1][C:2]1[C:10]([C:11]([OH:13])=[O:12])=[C:9]2[C:5]([CH:6]=[CH:7][NH:8]2)=[CH:4][CH:3]=1.[Cl:14][C:15]1[C:16]([N:21]2[C:25]([C:26](O)=O)=[CH:24][C:23]([C:29]([F:32])([F:31])[F:30])=[N:22]2)=[N:17][CH:18]=[CH:19][CH:20]=1.N1C=CC=CC=1.CS(Cl)(=O)=O>C(#N)C>[Cl:14][C:15]1[C:16]([N:21]2[C:25]([C:26]3[O:12][C:11](=[O:13])[C:10]4[C:2](=[CH:3][CH:4]=[C:5]5[CH:6]=[CH:7][NH:8][C:9]5=4)[N:1]=3)=[CH:24][C:23]([C:29]([F:32])([F:30])[F:31])=[N:22]2)=[N:17][CH:18]=[CH:19][CH:20]=1

参加物

6

反応物 4

HCID 1049PyridineHCID 31297Methanesulfonyl chlorideHCID 113921841-(3-chloro-2-pyridinyl)-3-(trifluoromethyl)-1H-pyrazole-5-carboxylic acidHCID 223138806-amino-1H-indole-7-carboxylic acid

生成物 1

HCID 1361760267-[2-(3-chloro-pyridin-2-yl)-5-trifluoromethyl-2H-pyrazol-3-yl]-1H-8-oxa-1,6-diaza-cyclopenta[a]naphthalen-9-one収率 25%

試薬・触媒・溶媒 1

HCID 6342Acetonitrile溶媒

実験手順

To a suspension of 79 mg (0.45 mmol) of 6-amino-1H-indole-7-carboxylic acid in 7 mL of acetonitrile, is added 130 mg (0.45 mmol) of 2-(3-chloro-pyridin-2-yl)-5-trifluoromethyl-2H-pyrazole-3-carboxylic acid followed by 0.16 mL (2.06 mmol) of pyridine. The mixture is stirred at ambient temperature during 30 minutes. Then the suspension is cooled to 0° C. and 0.12 mL (1.57 mmol) of methanesulfonyl chloride is added dropwise. The mixture is stirred at 0° C. during 30 minutes and 2 hours at ambient temperature. After evaporation of the solvent, the residue is triturated with a minimum of cold water. The precipitate which is formed is filtrated and washed with cold water. The residue is then purified by column chromatography on silica gel with hexanes and ethyl acetate as eluents and 47.1 mg (0.11 mmol, 25%) of a yellowish solid are obtained; LC/MS:432/434 (M+H)+.

後処理

  1. temperatureThen the suspension is cooled to 0° C.
  2. stirringThe mixture is stirred at 0° C. during 30 minutes and 2 hours at ambient temperature
  3. customAfter evaporation of the solvent
  4. customthe residue is triturated with a minimum of cold water
  5. customThe precipitate which is formed
  6. filtrationis filtrated
  7. washwashed with cold water
  8. customThe residue is then purified by column chromatography on silica gel with hexanes and ethyl acetate as eluents

出典と根拠

ORDレコード
ord-f7597506273241fd9edd7a5cfb9a3700
出典データセット
uspto-grants-2014_02
特許番号
US08658801B2

反応ノート

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