Lithium Hydroxide → (S)-2-(6-((4'-((1-acetylpiperidin-4-yl)oxy)-2',6'-dimethylbiphenyl-3-yl)methoxy)-2,3-dihydrobenzofuran-3-yl)acetic acid

HRID 2280645ノート

反応式

HRID 2280645 の反応式
[C:1]([N:4]1[CH2:9][CH2:8][CH:7]([O:10][C:11]2[CH:16]=[C:15]([CH3:17])[C:14]([C:18]3[CH:23]=[CH:22][CH:21]=[C:20]([CH2:24][O:25][C:26]4[CH:39]=[CH:38][C:29]5[C@H:30]([CH2:33][C:34]([O:36]C)=[O:35])[CH2:31][O:32][C:28]=5[CH:27]=4)[CH:19]=3)=[C:13]([CH3:40])[CH:12]=2)[CH2:6][CH2:5]1)(=[O:3])[CH3:2].[OH-].[Li+]>O1CCCC1.CO>[C:1]([N:4]1[CH2:5][CH2:6][CH:7]([O:10][C:11]2[CH:16]=[C:15]([CH3:17])[C:14]([C:18]3[CH:23]=[CH:22][CH:21]=[C:20]([CH2:24][O:25][C:26]4[CH:39]=[CH:38][C:29]5[C@H:30]([CH2:33][C:34]([OH:36])=[O:35])[CH2:31][O:32][C:28]=5[CH:27]=4)[CH:19]=3)=[C:13]([CH3:40])[CH:12]=2)[CH2:8][CH2:9]1)(=[O:3])[CH3:2]

参加物

5

反応物 2

HCID 3939Lithium HydroxideHCID 89701743(S)-methyl 2-(6-((4'-((1-acetylpiperidin-4-yl)oxy)-2',6'-dimethylbiphenyl-3-yl)methoxy)-2,3-dihydrobenzofuran-3-yl)acetate

生成物 1

HCID 71656908(S)-2-(6-((4'-((1-acetylpiperidin-4-yl)oxy)-2',6'-dimethylbiphenyl-3-yl)methoxy)-2,3-dihydrobenzofuran-3-yl)acetic acid収率 84.2%

試薬・触媒・溶媒 2

HCID 887Methanol溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

(S)-Methyl 2-(6-((4′-((1-acetylpiperidin-4-yl)oxy)-2′,6′-dimethylbiphenyl-3-yl)methoxy)-2,3-dihydrobenzofuran-3-yl)acetate 6a (10 mg, 0.02 mmol) was dissolved in 2 mL of a mixture of the solvents tetrahydrofuran and methanol (V/V=1:1), followed by addition of 1M aqueous lithium hydroxide solution (0.2 mL, 0.20 mmol). The reaction solution was stirred for 2 hours. The resulting solution was concentrated under reduced pressure, 1M hydrochloric acid was added dropwise to adjust the pH to 5, and extracted with ethyl acetate (20 mL×2). The combined organic extracts were washed with saturated sodium chloride solution (30 mL), dried with anhydrous magnesium sulphate, and filtered. The filtrate was concentrated under reduced pressure to obtain the title compound (S)-2-(6-((4′-((1-acetylpiperidin-4-yl)oxy)-2′,6′-dimethylbiphenyl-3-yl)methoxy)-2,3-dihydrobenzofuran-3-yl)acetic acid 6 (8 mg, yield 84.2%) as a white solid.

後処理

  1. concentrationThe resulting solution was concentrated under reduced pressure, 1M hydrochloric acid
  2. additionwas added dropwise
  3. extractionextracted with ethyl acetate (20 mL×2)
  4. washThe combined organic extracts were washed with saturated sodium chloride solution (30 mL)
  5. dry with materialdried with anhydrous magnesium sulphate
  6. filtrationfiltered
  7. concentrationThe filtrate was concentrated under reduced pressure

出典と根拠

ORDレコード
ord-d07f813e573f46098dd80bca147b5048
出典データセット
uspto-grants-2015_09
特許番号
US09139548B2

反応ノート

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