Hydrochloric Acid → 2-(7-(2-Methoxyethoxy)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)-8-(piperazin-1-yl)quinoline

HRID 339667ノート

反応式

HRID 339667 の反応式
[CH3:1][O:2][CH2:3][CH2:4][O:5][C:6]1[CH:11]=[CH:10][N:9]2[C:12]([C:15]3[CH:24]=[CH:23][C:22]4[C:17](=[C:18]([N:25]5[CH2:30][CH2:29][N:28](C(OC(C)(C)C)=O)[CH2:27][CH2:26]5)[CH:19]=[CH:20][CH:21]=4)[N:16]=3)=[N:13][N:14]=[C:8]2[CH:7]=1.Cl.[OH-].[Na+]>C1COCC1.CO.O1CCOCC1>[CH3:1][O:2][CH2:3][CH2:4][O:5][C:6]1[CH:11]=[CH:10][N:9]2[C:12]([C:15]3[CH:24]=[CH:23][C:22]4[C:17](=[C:18]([N:25]5[CH2:30][CH2:29][NH:28][CH2:27][CH2:26]5)[CH:19]=[CH:20][CH:21]=4)[N:16]=3)=[N:13][N:14]=[C:8]2[CH:7]=1

参加物

6

反応物 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 67234014Tert-butyl 4-(2-(7-(2-methoxyethoxy)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolin-8-yl)piperazine-1-carboxylate

生成物 1

HCID 461786642-(7-(2-Methoxyethoxy)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)-8-(piperazin-1-yl)quinoline収率 23%

試薬・触媒・溶媒 2

HCID 312751,4-Dioxane溶媒HCID 21899815MeOH tetrahydrofuran溶媒

実験手順

To a solution of tert-butyl 4-(2-(7-(2-methoxyethoxy)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolin-8-yl)piperazine-1-carboxylate (0.022 g, 0.0436 mmol) in THF/MeOH (1 mL) was added 4 M HCl (0.109 mL, 0.436 mmol) in dioxane. The reaction mixture was stirred at ambient temperature for 16 hours then neutralized with 1 M NaOH and extracted with EtOAc. The combined organic layers were washed with brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was purified via flash column chromatography (40:1 DCM/MeOH followed by 10:1 DCM/MeOH) to provide 4 mg (23%) of desired product as a yellow solid. MS APCI (+) m/z 405.4 (M+1) detected.

後処理

  1. extractionextracted with EtOAc
  2. washThe combined organic layers were washed with brine
  3. dry with materialdried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified via flash column chromatography (40:1 DCM/MeOH followed by 10:1 DCM/MeOH)

出典と根拠

ORDレコード
ord-9e5d562129ac47c89468a54a860691a9
出典データセット
uspto-grants-2014_11
特許番号
US08895550B2

反応ノート

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