Sodium Carbonate → Ethyl {2-[4-(1-ethyl-1H-pyrazolo[4,3-b]pyridin-3-yl)phenoxy]-1H-benzimidazol-1-yl}acetate

HRID 573318ノート

反応式

HRID 573318 の反応式
CC1(C)C(C)(C)OB([C:9]2[CH:30]=[CH:29][C:12]([O:13][C:14]3[N:18]([CH2:19][C:20]([O:22][CH2:23][CH3:24])=[O:21])[C:17]4[CH:25]=[CH:26][CH:27]=[CH:28][C:16]=4[N:15]=3)=[CH:11][CH:10]=2)O1.Br[C:33]1[C:37]2=[N:38][CH:39]=[CH:40][CH:41]=[C:36]2[N:35]([CH2:42][CH3:43])[N:34]=1.C([O-])([O-])=O.[Na+].[Na+]>COCCOC.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:42]([N:35]1[C:36]2[C:37](=[N:38][CH:39]=[CH:40][CH:41]=2)[C:33]([C:9]2[CH:30]=[CH:29][C:12]([O:13][C:14]3[N:18]([CH2:19][C:20]([O:22][CH2:23][CH3:24])=[O:21])[C:17]4[CH:25]=[CH:26][CH:27]=[CH:28][C:16]=4[N:15]=3)=[CH:11][CH:10]=2)=[N:34]1)[CH3:43]

参加物

7

反応物 3

HCID 10340Sodium CarbonateHCID 667278823-bromo-1-ethyl-1H-pyrazolo[4,3-b]pyridineHCID 86688977Ethyl {2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-1H-benzimidazol-1-yl}acetate

生成物 1

HCID 66727897Ethyl {2-[4-(1-ethyl-1H-pyrazolo[4,3-b]pyridin-3-yl)phenoxy]-1H-benzimidazol-1-yl}acetate収率 18.6%

試薬・触媒・溶媒 3

HCID 178418397HCID 178418397、化合物触媒HCID 962Water溶媒2 回HCID 80711,2-Dimethoxyethane溶媒

実験手順

A mixture of ethyl {2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-1H-benzimidazol-1-yl}acetate (540 mg), 3-bromo-1-ethyl-1H-pyrazolo[4,3-b]pyridine (289 mg), Pd(PPh3)4 (44.3 mg), Na2CO3 (474 mg) in DME (10 mL) and water (2 ml) was refluxed overnight under Ar atmosphere. The reaction mixture was poured into water and extracted with AcOEt. The extract was washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (AcOEt/hexane) to give the title compound (105 mg).

後処理

  1. temperaturewas refluxed overnight under Ar atmosphere
  2. extractionextracted with AcOEt
  3. washThe extract was washed with brine
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (AcOEt/hexane)

出典と根拠

ORDレコード
ord-9639a029461e40bd82144da974fdc9ab
出典データセット
uspto-grants-2015_05
特許番号
US09029536B2

反応ノート

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