Isopropyl iodide → 6-Bromo-8-isopropyl-4-methyl-2-(methylthio)pyrido[2,3-d]pyrimidin-7(8H)-one

HRID 2389969ノート

反応式

HRID 2389969 の反応式
[H-].[Na+].[Br:3][C:4]1[C:16](=[O:17])[NH:15][C:7]2[N:8]=[C:9]([S:13][CH3:14])[N:10]=[C:11]([CH3:12])[C:6]=2[CH:5]=1.I[CH:19]([CH3:21])[CH3:20]>CN(C=O)C>[Br:3][C:4]1[C:16](=[O:17])[N:15]([CH:19]([CH3:21])[CH3:20])[C:7]2[N:8]=[C:9]([S:13][CH3:14])[N:10]=[C:11]([CH3:12])[C:6]=2[CH:5]=1

参加物

5

反応物 3

HCID 6362Isopropyl iodideHCID 24758Sodium hydrideHCID 592589096-bromo-4-methyl-2-(methylthio)pyrido[2,3-d]pyrimidin-7(8H)-one

生成物 1

HCID 592589536-Bromo-8-isopropyl-4-methyl-2-(methylthio)pyrido[2,3-d]pyrimidin-7(8H)-one収率 59.4%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
46 °C

実験手順

To a suspension of NaH (120 mg, 5.00 mmol) in DMF (15 mL) was added 6-bromo-4-methyl-2-(methylthio)pyrido[2,3-d]pyrimidin-7(8H)-one (572 mg, 2 mmol). The mixture was heated to 46° C. The solution was cooled down slightly and 2-iodopropane (0.30 mL, 3.0 mmol) was added. The mixture was heated at 46° C. for 30 min and then cooled to room temperature and partitioned between water and ethyl acetate. The organic phase was dried (MgSO4) and concentrated. The crude product was purified by silica gel flash chromatography, using EtOAc/Hexane, to give the title compound (390 mg, 59%).

後処理

  1. temperatureThe solution was cooled down slightly
  2. temperatureThe mixture was heated at 46° C. for 30 min
  3. temperaturecooled to room temperature
  4. custompartitioned between water and ethyl acetate
  5. dry with materialThe organic phase was dried (MgSO4)
  6. concentrationconcentrated
  7. customThe crude product was purified by silica gel flash chromatography

出典と根拠

ORDレコード
ord-0742ec46b387422ca53ca4115c308c1c
出典データセット
uspto-grants-2012_09
特許番号
US08273755B2

反応ノート

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