Sodium Hydroxide → 1-[4-Dimethylamino-2-(2-methylsulfanyl-pyrimidine-4-carbonyl) pyrazolidin-1-yl]-2-(4-fluorophenyl)-ethanone

HRID 1581530

反応式

HRID 1581530 の反応式
[CH3:1][N:2]([CH3:18])[CH:3]1[CH2:7][N:6]([C:8](=[O:17])[CH2:9][C:10]2[CH:15]=[CH:14][C:13]([F:16])=[CH:12][CH:11]=2)[NH:5][CH2:4]1.[CH3:19][S:20]([C:23]1[N:28]=[C:27]([C:29](Cl)=[O:30])[CH:26]=[CH:25][N:24]=1)(=O)=O.[OH-].[Na+]>ClCCl>[CH3:18][N:2]([CH3:1])[CH:3]1[CH2:7][N:6]([C:8](=[O:17])[CH2:9][C:10]2[CH:15]=[CH:14][C:13]([F:16])=[CH:12][CH:11]=2)[N:5]([C:29]([C:27]2[CH:26]=[CH:25][N:24]=[C:23]([S:20][CH3:19])[N:28]=2)=[O:30])[CH2:4]1

参加物

5

実験手順

To a solution of 1-(4-dimethylamino-pyrazolidin-1-yl)-2-(4-fluorophenyl)-ethanone, 22, (2.5 g, 10 mmol) in dichloromethane (20 mL) is added 2-methylsulfonyl-pyrimidine-4-carbonyl chloride (3.7 g, 20 mmol) followed by dropwise addition of a 1.0 N aqueous solution of sodium hydroxide (35 mL). The mixture is vigorously stirred at room temperature for 12 hours. The reaction is diluted with dichloromethane (100 mL) and washed with water (100 mL). The aqueous layer is back-extracted with dichloromethane (100 mL). The combined organic layers are washed with a saturated aqueous solution of sodium bicarbonate (100 mL) and brine (100 mL), dried, filtered and concentrated in vacuo. The resulting crude material is purified over silica (1:1 hexane/ethyl acetate to 100% ethyl acetate) to afford the desired product.

後処理

  1. washwashed with water (100 mL)
  2. extractionThe aqueous layer is back-extracted with dichloromethane (100 mL)
  3. washThe combined organic layers are washed with a saturated aqueous solution of sodium bicarbonate (100 mL) and brine (100 mL)
  4. customdried
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe resulting crude material is purified over silica (1:1 hexane/ethyl acetate to 100% ethyl acetate)

出典と根拠

ORDレコード
ord-82ece23e4b9a48208a1fafdf7af0877e
出典データセット
uspto-grants-2004_05
特許番号
US06730668B2

関連ノート

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