Triphenylphosphine → 3-[4-{3-Bromo-1-(1-[{2-(trimethylsilyl)ethoxy}methyl]-1H-benzo[d]imidazol-2-yl)propyl}phenyl]-1-ethyl-1H-pyrazolo[4,3-b]pyridine

HRID 573301ノート

反応式

HRID 573301 の反応式
[CH2:1]([N:3]1[C:11]2[C:6](=[N:7][CH:8]=[CH:9][CH:10]=2)[C:5]([C:12]2[CH:17]=[CH:16][C:15]([CH:18]([C:22]3[N:26]([CH2:27][O:28][CH2:29][CH2:30][Si:31]([CH3:34])([CH3:33])[CH3:32])[C:25]4[CH:35]=[CH:36][CH:37]=[CH:38][C:24]=4[N:23]=3)[CH2:19][CH2:20]O)=[CH:14][CH:13]=2)=[N:4]1)[CH3:2].C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C1C(=O)N([Br:65])C(=O)C1.C([O-])(O)=O.[Na+]>CN(C=O)C>[Br:65][CH2:20][CH2:19][CH:18]([C:15]1[CH:14]=[CH:13][C:12]([C:5]2[C:6]3=[N:7][CH:8]=[CH:9][CH:10]=[C:11]3[N:3]([CH2:1][CH3:2])[N:4]=2)=[CH:17][CH:16]=1)[C:22]1[N:26]([CH2:27][O:28][CH2:29][CH2:30][Si:31]([CH3:32])([CH3:34])[CH3:33])[C:25]2[CH:35]=[CH:36][CH:37]=[CH:38][C:24]=2[N:23]=1

参加物

6

反応物 4

HCID 11776TriphenylphosphineHCID 67184N-bromobutanimideHCID 516892Sodium BicarbonateHCID 866889713-[4-(1-Ethyl-1H-pyrazolo[4,3-b]pyridin-3-yl)phenyl]-3-(1-[{2-(trimethylsilyl)ethoxy]methyl}-1H-benzo[d]imidazol-2-yl)propan-1-ol

生成物 1

HCID 866889733-[4-{3-Bromo-1-(1-[{2-(trimethylsilyl)ethoxy}methyl]-1H-benzo[d]imidazol-2-yl)propyl}phenyl]-1-ethyl-1H-pyrazolo[4,3-b]pyridine収率 83.8%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

To a solution of 3-{4-(1-ethyl-1H-pyrazolo[4,3-b]pyridin-3-yl)phenyl}-3-(1-[(2-(trimethylsilyl)ethoxy)methyl]-1H-benzo[d]imidazol-2-yl)propan-1-ol (80 mg) and PPh3 (43.7 mg) in DMF (2 mL) was added NBS (27.0 mg) at room temperature. The mixture was stirred at room temperature under a dry atmosphere for 1 h. The mixture was neutralized with saturated NaHCO3 aqueous solution at 0° C. and extracted with AcOEt. The organic layer was separated, washed with water and brine, dried over MgSO4 and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (hexane/AcOEt) to give the title compound (75 mg).

後処理

  1. extractionextracted with AcOEt
  2. customThe organic layer was separated
  3. washwashed with water and brine
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (hexane/AcOEt)

出典と根拠

ORDレコード
ord-4ccd111bbb8046ebbe19513a890ca7fd
出典データセット
uspto-grants-2015_05
特許番号
US09029536B2

反応ノート

読み込み中…