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Lithium hydroxide, monohydrate → 4-(3-Naphthalen-1-ylmethyl-2,3-dihydro-imidazo[1,2-a]pyridin-2-ylsulfanyl)-butyric acid

HRID 215970
ノート
印刷プレビュー

反応式

HRID 215970 の反応式
C[O:2][C:3](=[O:28])[CH2:4][CH2:5][CH2:6][S:7][CH:8]1[CH:16]([CH2:17][C:18]2[C:27]3[C:22](=[CH:23][CH:24]=[CH:25][CH:26]=3)[CH:21]=[CH:20][CH:19]=2)[N:11]2[CH:12]=[CH:13][CH:14]=[CH:15][C:10]2=[N:9]1.O.[OH-].[Li+]>C1COCC1.O>[C:18]1([CH2:17][CH:16]2[N:11]3[CH:12]=[CH:13][CH:14]=[CH:15][C:10]3=[N:9][CH:8]2[S:7][CH2:6][CH2:5][CH2:4][C:3]([OH:28])=[O:2])[C:27]2[C:22](=[CH:23][CH:24]=[CH:25][CH:26]=2)[CH:21]=[CH:20][CH:19]=1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

5

反応物 2

HCID 168937Lithium hydroxide, monohydrateHCID 687023894-(3-Naphthalen-1-ylmethyl-2,3-dihydro-imidazo[1,2-a]pyridin-2-ylsulfanyl)-butyric acid methyl ester

生成物 1

HCID 687026464-(3-Naphthalen-1-ylmethyl-2,3-dihydro-imidazo[1,2-a]pyridin-2-ylsulfanyl)-butyric acid

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 8028Tetrahydrofuran溶媒

反応条件

温度
40 °C

実験手順

A solution of 50 mg (0.13 mmol) of 4-(3-naphthalen-1-ylmethyl-2,3-dihydro-imidazo[1,2-a]pyridin-2-ylsulfanyl)-butyric acid methyl ester in 2 mL of THF is treated with a solution of 11 mg (0.26 mmol) of lithium hydroxide monohydrate in 1 mL of water at room temperature. The resulting mixture is heated to 40° C., and stirred at this temperature for 3 h. Then the reaction mixture is cooled to room temperature and concentrated in vacuo. The residue is diluted with water and neutralized with 1N HCl solution. The product is extracted with ethyl acetate, and the organic layer is separated. The organic layer is washed with water and brine, dried over magnesium sulfate, filtered and concentrated in vacuo. The residue is purified by flash chromatography eluting with 3˜10% methanol in dichloromethane solution to give the title compound. LCMS (ESMS): m/z 377 (M+H+)

後処理

  1. temperatureThen the reaction mixture is cooled to room temperature
  2. concentrationconcentrated in vacuo
  3. additionThe residue is diluted with water and neutralized with 1N HCl solution
  4. extractionThe product is extracted with ethyl acetate
  5. customthe organic layer is separated
  6. washThe organic layer is washed with water and brine
  7. dry with materialdried over magnesium sulfate
  8. filtrationfiltered
  9. concentrationconcentrated in vacuo
  10. customThe residue is purified by flash chromatography
  11. washeluting with 3˜10% methanol in dichloromethane solution

出典と根拠

ORDレコード
ord-945bd1b28a924d4c9cbf6dea5443c5b6
出典データセット
uspto-grants-2012_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08193214B2

反応ノート

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このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート