Sodium Hydroxide → HCID 57245995、化合物

HRID 887943ノート

反応式

HRID 887943 の反応式
[O:1]1[CH2:6][CH2:5][CH2:4][CH2:3][CH:2]1[O:7][N:8]1[C@@H:11]([CH3:12])[C@@H:10]([CH2:13][CH2:14][CH2:15][C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[C:9]1=[O:22].[OH-:23].[Na+]>O1CCOCC1>[C:16]1([CH2:15][CH2:14][CH2:13][C@H:10]([C@@H:11]([NH:8][O:7][CH:2]2[CH2:3][CH2:4][CH2:5][CH2:6][O:1]2)[CH3:12])[C:9]([OH:22])=[O:23])[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1

参加物

4

反応物 2

HCID 14798Sodium HydroxideHCID 57200745HCID 57200745、化合物

生成物 1

HCID 57245995HCID 57245995、化合物収率 99%

試薬・触媒・溶媒 1

HCID 312751,4-Dioxane溶媒

実験手順

To a solution of (3R,4S)-1-(2-tetrahydropyranyloxy)-3-(3-phenyl-1-propyl)-4-methylazetidin-2-one (20.5 g, 67.6 mmol) in dioxane (220 mL) is added 1 M aqueous sodium hydroxide (102 mL). The solution is stirred at 23.degree. C. for 20 h, then extracted with hexanes (200 mL). The aqueous layer is acidified to pH=3 with saturated aqueous sodium bisulfate solution, and is extracted with two 300 mL portions of ethyl acetate. The combined organics are washed with saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure to provide (2R,3S)-2-(3-phenyl-1-propyl)-3-(2-tetrahydropyranyloxyamino)butanoic acid as an oil (21.5 g, 99% yield).

後処理

  1. extractionextracted with hexanes (200 mL)
  2. extractionis extracted with two 300 mL portions of ethyl acetate
  3. washThe combined organics are washed with saturated aqueous sodium chloride
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-2b55df1698a94e62b30b85fd6da82c76
出典データセット
uspto-grants-2012_08
特許番号
US08247451B2

反応ノート

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