Sodium Carbonate → HCID 57313338、化合物

HRID 379983

反応式

HRID 379983 の反応式
[Si]([O:8][C@H:9]([CH2:22][CH2:23][C:24]1[CH:25]=[N:26][CH:27]=[CH:28][CH:29]=1)[C@H:10]([CH3:21])[O:11][C:12]1[CH:17]=[CH:16][C:15](B(O)O)=[CH:14][CH:13]=1)(C(C)(C)C)(C)C.Br[C:31]1[CH:36]=[CH:35][C:34]([Cl:37])=[CH:33][C:32]=1[Cl:38].C(=O)([O-])[O-].[Na+].[Na+]>C1(C)C=CC=CC=1.C(O)C.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>[Cl:37][C:34]1[CH:33]=[C:32]([Cl:38])[CH:31]=[CH:36][C:35]=1[C:15]1[CH:14]=[CH:13][C:12]([O:11][C@@H:10]([CH3:21])[C@H:9]([OH:8])[CH2:22][CH2:23][C:24]2[CH:25]=[N:26][CH:27]=[CH:28][CH:29]=2)=[CH:17][CH:16]=1

参加物

7

反応物 3

HCID 10340Sodium CarbonateHCID 709471-Bromo-2,4-dichlorobenzeneHCID 54020751(1S,2R)-4-[2-(tert-butyldimethylsilanyloxy)-1-methyl-4-pyridin-3-ylbutoxy]benzeneboronic acid

生成物 1

HCID 57313338HCID 57313338、化合物収率 33%

試薬・触媒・溶媒 3

HCID 178418397HCID 178418397、化合物触媒HCID 702Ethanol溶媒HCID 1140Toluene溶媒

反応条件

温度
100 °C

実験手順

Prepared according to the method described in Example 12b) from (1S,2R)-4-[2-(tert-butyldimethylsilanyloxy)-1-methyl-4-pyridin-3-ylbutoxy]benzeneboronic acid (0.20 g, Example 11)), 1-bromo-2,4-dichlorobenzene (0.218 g), 2M aqueous sodium carbonate (0.5 ml) and tetrakis(triphenylphosphine)palladium (0) (0.020 g)in toluene (5 ml) and ethanol (2 ml). The reaction mixture was heated at 100° C. under nitrogen for 4 hours. After cooling, the solution was concentrated under reduced pressure. Concentrated hydrochloric acid (1 ml) was added to a solution of the residue in methanol (5 ml) and the suspension was stirred at room temperature for 5 hours. The mixture was concentrated under reduced pressure and the residue partitioned between diethyl ether and water. The aqueous layer was neutralised with sodium hydrogen carbonate solution (in water) and the aqueous solution was extracted with ethyl acetate. The combined organic phases were dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure. The residue was purified by normal-phase HPLC eluting with a gradient of 0-25% ethanol in dichloromethane to give a solid (0.064 g) from which the oxalate salt was prepared (0.054 g).

後処理

  1. customPrepared
  2. temperatureAfter cooling
  3. concentrationthe solution was concentrated under reduced pressure
  4. additionConcentrated hydrochloric acid (1 ml) was added to a solution of the residue in methanol (5 ml)
  5. concentrationThe mixture was concentrated under reduced pressure
  6. customthe residue partitioned between diethyl ether and water
  7. extractionthe aqueous solution was extracted with ethyl acetate
  8. dry with materialThe combined organic phases were dried over anhydrous magnesium sulfate
  9. filtrationfiltered
  10. concentrationconcentrated under reduced pressure
  11. customThe residue was purified by normal-phase HPLC
  12. washeluting with a gradient of 0-25% ethanol in dichloromethane

出典と根拠

ORDレコード
ord-19d5bf3b0bc14e0a97b21f77e4775478
出典データセット
uspto-grants-2001_10
特許番号
US06300352B1

関連ノート

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