1,8-Diazabicyclo(5.4.0)undec-7-ene → 3-(3-nitrophenyl)-3-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]propanenitrile

HRID 1817594

反応式

HRID 1817594 の反応式
[NH:1]1[CH:5]=[C:4]([C:6]2[C:7]3[CH:14]=[CH:13][N:12]([CH2:15][O:16][CH2:17][CH2:18][Si:19]([CH3:22])([CH3:21])[CH3:20])[C:8]=3[N:9]=[CH:10][N:11]=2)[CH:3]=[N:2]1.C1CCN2C(=NCCC2)CC1.[N+:34]([C:37]1[CH:38]=[C:39](/[CH:43]=[CH:44]\[C:45]#[N:46])[CH:40]=[CH:41][CH:42]=1)([O-:36])=[O:35]>C(#N)C>[N+:34]([C:37]1[CH:38]=[C:39]([CH:43]([N:1]2[CH:5]=[C:4]([C:6]3[C:7]4[CH:14]=[CH:13][N:12]([CH2:15][O:16][CH2:17][CH2:18][Si:19]([CH3:22])([CH3:21])[CH3:20])[C:8]=4[N:9]=[CH:10][N:11]=3)[CH:3]=[N:2]2)[CH2:44][C:45]#[N:46])[CH:40]=[CH:41][CH:42]=1)([O-:36])=[O:35]

参加物

5

反応条件

温度
67 °C

実験手順

To 4-(1H-pyrazol-4-yl)-7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidine (0.500 g, 0.00158 mol) in 8.0 mL of dry ACN was added DBU (0.24 mL, 0.0016 mol) followed by addition of (2Z)-3-(3-nitrophenyl)acrylonitrile (0.36 g, 0.0021 mol) in 2.0 mL of ACN. The reaction mixture was heated at 67° C. for 18 hours. This was cooled to room temperature, and the mixture was partitioned between diluted hydrochloric acid and ethyl acetate. The organic layer was washed with saturated sodium chloride, dried over anhydrous magnesium sulfate, and concentrated. The crude product was purified by flash chromatography on silica gel using ethyl acetate-hexanes 6:4, to give 3-(3-nitrophenyl)-3-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]propanenitrile as a dark orange oil, (688 mg, 88.65%). LCMS (M+1)+: 490

後処理

  1. temperatureThis was cooled to room temperature
  2. customthe mixture was partitioned between diluted hydrochloric acid and ethyl acetate
  3. washThe organic layer was washed with saturated sodium chloride
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated
  6. customThe crude product was purified by flash chromatography on silica gel

出典と根拠

ORDレコード
ord-b2ec10d604dc4889aeb86aebcc0e9987
出典データセット
uspto-grants-2009_10
特許番号
US07598257B2

関連ノート

読み込み中…