Citric Acid → 3-[N-(t-butoxycarbonyl)-N-(2-cyclohexylethyl)amino]propionic acid

HRID 18380

反応式

HRID 18380 の反応式
Cl.[CH:2]1([CH2:8][CH2:9][NH:10][CH2:11][CH2:12][C:13]([OH:15])=[O:14])[CH2:7][CH2:6][CH2:5][CH2:4][CH2:3]1.[C:16](=O)([O:22]C(C)(C)C)[O:17][C:18]([CH3:21])([CH3:20])[CH3:19].C(N(CC)CC)C.C(O)(=O)CC(CC(O)=O)(C(O)=O)O>O1CCCC1>[C:18]([O:17][C:16]([N:10]([CH2:11][CH2:12][C:13]([OH:15])=[O:14])[CH2:9][CH2:8][CH:2]1[CH2:7][CH2:6][CH2:5][CH2:4][CH2:3]1)=[O:22])([CH3:21])([CH3:20])[CH3:19]

参加物

6

実験手順

Next, tetrahydrofuran (8 ml) was added to 3-[N-(2-cyclohexylethyl)amino]propionic acid hydrochloride (1.0 g, 4.2 mmol), and the mixture was stirred at room temperature. Di-t-butyl carbonate (1.1 g, 5.1 mmol) and triethylamine (1.3 ml, 9.3 mmol) were added to the mixture, the whole was stirred overnight, and then a 5% aqueous citric acid solution (10 ml) was added to the reaction mixture. The whole was extracted with chloroform (60 ml), and the obtained organic layer was washed with saturated brine (20 ml), dried over magnesium sulfate and concentrated under reduced pressure. The residue was purified by silica gel column chromatography to give 3-[N-(t-butoxycarbonyl)-N-(2-cyclohexylethyl)amino]propionic acid (0.79 g, 62%) as a colorless oily matter.

後処理

  1. stirringthe whole was stirred overnight
  2. extractionThe whole was extracted with chloroform (60 ml)
  3. washthe obtained organic layer was washed with saturated brine (20 ml)
  4. dry with materialdried over magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography

出典と根拠

ORDレコード
ord-10666381b4cd4c60a31ed72d872c318e
出典データセット
uspto-grants-2010_06
特許番号
US07741346B2

関連ノート

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