Tetrahydrofuran → HCID 66936733、化合物

HRID 1943740ノート

反応式

HRID 1943740 の反応式
O1CCCC1.Br[C:7]1[CH:16]=[N:15][C:10]2[O:11][CH2:12][CH2:13][NH:14][C:9]=2[CH:8]=1.CC1(C)C(C)(C)OB([C:25]2[CH:33]=[CH:32][CH:31]=[C:30]3[C:26]=2[CH:27]=[CH:28][NH:29]3)O1.C(=O)([O-])[O-].[K+].[K+]>O>[NH:29]1[C:30]2[C:26](=[C:25]([C:7]3[CH:16]=[N:15][C:10]4[O:11][CH2:12][CH2:13][NH:14][C:9]=4[CH:8]=3)[CH:33]=[CH:32][CH:31]=2)[CH:27]=[CH:28]1

参加物

6

反応物 4

HCID 8028TetrahydrofuranHCID 11430Potassium CarbonateHCID 113224711H-Indole-4-boronic acid, pinacol esterHCID 667890617-bromo-1H,2H,3H-pyrido[2,3-b][1,4]oxazine

生成物 1

HCID 66936733HCID 66936733、化合物収率 139.8%

試薬・触媒・溶媒 1

HCID 962Water溶媒

反応条件

温度
80 °C

実験手順

To 3 ml of tetrahydrofuran (THF)/0.5 ml of distilled water, 7-bromo-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine (80.0 mg, 0.37 mmol), 4-(4,4,5,5,-tetramethyl-[1,3,2]dioxaborolane-2-yl)-1H-indole (109 mg, 0.45 mmol), potassium carbonate (103 mg, 0.74 mmol) and tetrakis triphenylphosphine palladium (172 mg, 0.15 mmol) were added and stirred at 80° C. for 4 hours. After completion of the reaction, the mixture was extracted with ethyl acetate, and the combined organic layer was dried over anhydrous sodium sulfate (Na2SO4), filtered and evaporated under reduced pressure. The residue was purified by column chromatography on amine silica eluting with a solvent of dichloromethane:methanol=40:1. The fractions containing the product were collected and evaporated to obtain 7-(1H-indol-4-yl)-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine as white solid (130 mg).

後処理

  1. customAfter completion of the reaction
  2. extractionthe mixture was extracted with ethyl acetate
  3. dry with materialthe combined organic layer was dried over anhydrous sodium sulfate (Na2SO4)
  4. filtrationfiltered
  5. customevaporated under reduced pressure
  6. customThe residue was purified by column chromatography on amine silica eluting with a solvent of dichloromethane
  7. additionThe fractions containing the product
  8. customwere collected
  9. customevaporated

出典と根拠

ORDレコード
ord-05a591a6f3ba4285915111af68f57a83
出典データセット
uspto-grants-2013_03
特許番号
US08394792B2

反応ノート

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