Sodium borohydride → 1,4-Dihydro-8-(4-fluorophenyl)-4-methyl-7-(pyridin-4-yl)pyrazolo[5,1-c][1,2,4]triazine

HRID 2260537ノート

反応式

HRID 2260537 の反応式
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:9]([C:18]3[CH:23]=[CH:22][N:21]=[CH:20][CH:19]=3)=[N:10][N:11]3[C:16]([CH3:17])=[CH:15][N:14]=[N:13][C:12]=23)=[CH:4][CH:3]=1.[BH4-].[Na+]>C(O)C>[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:9]([C:18]3[CH:19]=[CH:20][N:21]=[CH:22][CH:23]=3)=[N:10][N:11]3[CH:16]([CH3:17])[CH:15]=[N:14][NH:13][C:12]=23)=[CH:4][CH:3]=1

参加物

4

反応物 2

HCID 4311764Sodium borohydrideHCID 229090688-(4-Fluorophenyl)-4-methyl-7-(pyridin-4-yl)pyrazolo[5,1-c][1,2,4]triazine

生成物 1

HCID 1363784171,4-Dihydro-8-(4-fluorophenyl)-4-methyl-7-(pyridin-4-yl)pyrazolo[5,1-c][1,2,4]triazine収率 24.4%

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

実験手順

A mixture of 8-(4-fluorophenyl)-4-methyl-7-(pyridin-4-yl)pyrazolo[5,1-c][1,2,4]triazine (53 mg) and sodium borohydride (13 mg) in ethanol (1 ml) was refluxed for 3 hours, cooled and poured into ice-water. The separated oil was extracted with dichloromethane. The extract was washed with brine, dried and concentrated in vacuo. The residue was purified by column chromatography on silica gel and the obtained oil was crystallized from diisopropyl ether to give 1,4-dihydro-8-(4-fluorophenyl)-4-methyl-7-(pyridin-4-yl)pyrazolo[5,1-c][1,2,4]triazine (13 mg).

後処理

  1. temperaturewas refluxed for 3 hours
  2. temperaturecooled
  3. extractionThe separated oil was extracted with dichloromethane
  4. washThe extract was washed with brine
  5. customdried
  6. concentrationconcentrated in vacuo
  7. customThe residue was purified by column chromatography on silica gel
  8. customthe obtained oil was crystallized from diisopropyl ether

出典と根拠

ORDレコード
ord-3e6ed5e5069d4375bd75cb21bf9fd5e9
出典データセット
uspto-grants-1995_12
特許番号
US05478827

反応ノート

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