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Hydrochloric Acid → (3,5-Dibromo-4-methoxy-phenyl)-(7-isoquinolin-4-yl-2,3-dihydro-pyrido[2,3-b][1,4]oxazin-1-yl)-methanone

HRID 1943722
ノート
印刷プレビュー

反応式

HRID 1943722 の反応式
[CH:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[C:4]([C:11]2[CH:20]=[N:19][C:14]3[O:15][CH2:16][CH2:17][NH:18][C:13]=3[CH:12]=2)=[CH:3][N:2]=1.[Br:21][C:22]1[CH:23]=[C:24]([CH:28]=[C:29]([Br:33])[C:30]=1[O:31][CH3:32])[C:25](Cl)=[O:26].C(N(CC)CC)C.Cl>ClCCl>[Br:21][C:22]1[CH:23]=[C:24]([C:25]([N:18]2[CH2:17][CH2:16][O:15][C:14]3[N:19]=[CH:20][C:11]([C:4]4[C:5]5[C:10](=[CH:9][CH:8]=[CH:7][CH:6]=5)[CH:1]=[N:2][CH:3]=4)=[CH:12][C:13]2=3)=[O:26])[CH:28]=[C:29]([Br:33])[C:30]=1[O:31][CH3:32]
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 4

HCID 313Hydrochloric AcidHCID 8471TriethylamineHCID 337796303,5-Dibromo-4-methoxybenzoyl chlorideHCID 669367327-isoquinolin-4-yl-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine

生成物 1

HCID 66936506(3,5-Dibromo-4-methoxy-phenyl)-(7-isoquinolin-4-yl-2,3-dihydro-pyrido[2,3-b][1,4]oxazin-1-yl)-methanone収率 23.3%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

Under nitrogen atmosphere, in a 10 ml flask, 7-isoquinolin-4-yl-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine (22.6 mg, 0.085 mmol) and 3,5-dibromo-4-methoxy-benzoyl chloride (42.2 mg, 0.129 mmol) were dissolved in dichloromethane (1.0 ml). After cooling to 0□, triethylamine (0.06 ml, 0.429 mmol) was added thereto at room temperature for 3 hours. After neutralizing with 1N hydrochloric acid solution, the mixture was extracted with dichloromethane, and the combined organic layer was dried over anhydrous magnesium sulfate (MgSO4), filtered and evaporated under reduced pressure. The residue was purified by column chromatography on amine silica eluting with a solvent of ethyl acetate and n-hexane. The fractions containing the product were collected and evaporated to obtain white solid (11.0 mg, 23%).

後処理

  1. additionwas added
  2. extractionthe mixture was extracted with dichloromethane
  3. dry with materialthe combined organic layer was dried over anhydrous magnesium sulfate (MgSO4)
  4. filtrationfiltered
  5. customevaporated under reduced pressure
  6. customThe residue was purified by column chromatography on amine silica eluting with a solvent of ethyl acetate and n-hexane
  7. additionThe fractions containing the product
  8. customwere collected
  9. customevaporated

出典と根拠

ORDレコード
ord-50720bcc5fb742d4b90cd43bdb71f9a9
出典データセット
uspto-grants-2013_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08394792B2

反応ノート

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