Triethylamine → 4-[3-[(5-Bromo-3-pyridyl)carbonylamino]phenyl]-2-(3-pyridylmethyl)-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine

HRID 1953418ノート

反応式

HRID 1953418 の反応式
[NH2:1][C:2]1[CH:3]=[C:4]([N:8]2[C:13](=[O:14])[C:12]([CH2:15][C:16]3[CH:17]=[N:18][CH:19]=[CH:20][CH:21]=3)=[N:11][C:10]3[CH:22]=[CH:23][CH:24]=[N:25][C:9]2=3)[CH:5]=[CH:6][CH:7]=1.C(N(CC)CC)C.[Br:33][C:34]1[CH:35]=[C:36]([C:40](Cl)=[O:41])[CH:37]=[N:38][CH:39]=1.Cl.C(=O)(O)[O-].[Na+]>O1CCOCC1>[Br:33][C:34]1[CH:35]=[C:36]([C:40]([NH:1][C:2]2[CH:3]=[C:4]([N:8]3[C:13](=[O:14])[C:12]([CH2:15][C:16]4[CH:17]=[N:18][CH:19]=[CH:20][CH:21]=4)=[N:11][C:10]4[CH:22]=[CH:23][CH:24]=[N:25][C:9]3=4)[CH:5]=[CH:6][CH:7]=2)=[O:41])[CH:37]=[N:38][CH:39]=1

参加物

6

反応物 4

HCID 8471TriethylamineHCID 516892Sodium BicarbonateHCID 189717365-Bromo-nicotinic acid chloride hydrochlorideHCID 227240264-(3-Aminophenyl)-2-(3-pyridylmethyl)-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine

生成物 1

HCID 232981134-[3-[(5-Bromo-3-pyridyl)carbonylamino]phenyl]-2-(3-pyridylmethyl)-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine収率 54.7%

試薬・触媒・溶媒 1

HCID 312751,4-Dioxane溶媒

実験手順

To a solution of 4-(3-aminophenyl)-2-(3-pyridylmethyl)-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine (300 mg) and triethylamine (0.33 ml) in 1,4-dioxane (10 ml) was added 5-bromo-3-pyridylcarbonyl chloride·hydrochloride (304 mg). The mixture was stirred at room temperature for 15 minutes, then poured into aqueous sodium bicarbonate and extracted with ethyl acetate. The organic solution was washed with aqueous sodium bicarbonate and brine, dried over magnesium sulfate and concentrated. The residue was crystallized from methanol to give 4-[3-[(5-bromo-3-pyridyl)carbonylamino]phenyl]-2-(3-pyridylmethyl)-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine (256 mg).

後処理

  1. extractionextracted with ethyl acetate
  2. washThe organic solution was washed with aqueous sodium bicarbonate and brine
  3. dry with materialdried over magnesium sulfate
  4. concentrationconcentrated
  5. customThe residue was crystallized from methanol

出典と根拠

ORDレコード
ord-2652db730fca4545861922757fa72006
出典データセット
uspto-grants-2000_09
特許番号
US06117875

反応ノート

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