Lithium Hydroxide → 2-((S)-6-((3'-fluoro-2',6'-dimethyl-4'-(((S)-tetrahydrofuran-3-yl)oxy)biphenyl-3-yl)methoxy)-2,3-dihydrobenzofuran-3-yl)acetic acid

HRID 2280678ノート

反応式

HRID 2280678 の反応式
[F:1][C:2]1[C:3]([CH3:37])=[C:4]([C:15]2[CH:20]=[CH:19][CH:18]=[C:17]([CH2:21][O:22][C:23]3[CH:36]=[CH:35][C:26]4[C@H:27]([CH2:30][C:31]([O:33]C)=[O:32])[CH2:28][O:29][C:25]=4[CH:24]=3)[CH:16]=2)[C:5]([CH3:14])=[CH:6][C:7]=1[O:8][C@H:9]1[CH2:13][CH2:12][O:11][CH2:10]1.[OH-].[Li+]>CO.O1CCCC1>[F:1][C:2]1[C:3]([CH3:37])=[C:4]([C:15]2[CH:20]=[CH:19][CH:18]=[C:17]([CH2:21][O:22][C:23]3[CH:36]=[CH:35][C:26]4[C@H:27]([CH2:30][C:31]([OH:33])=[O:32])[CH2:28][O:29][C:25]=4[CH:24]=3)[CH:16]=2)[C:5]([CH3:14])=[CH:6][C:7]=1[O:8][C@H:9]1[CH2:13][CH2:12][O:11][CH2:10]1

参加物

5

反応物 2

HCID 3939Lithium HydroxideHCID 89701792methyl 2-((S)-6-((3'-fluoro-2',6'-dimethyl-4'-(((S)-tetrahydrofuran-3-yl)oxy)biphenyl-3-yl)methoxy)-2,3-dihydrobenzofuran-3-yl)acetate

生成物 1

HCID 716570962-((S)-6-((3'-fluoro-2',6'-dimethyl-4'-(((S)-tetrahydrofuran-3-yl)oxy)biphenyl-3-yl)methoxy)-2,3-dihydrobenzofuran-3-yl)acetic acid収率 57.8%

試薬・触媒・溶媒 2

HCID 887Methanol溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

Methyl 2-((S)-6-((3′-fluoro-2′,6′-dimethyl-4′-(((S)-tetrahydrofuran-3-yl)oxy) biphenyl-3-yl)methoxy)-2,3-dihydrobenzofuran-3-yl)acetate 19d (150 mg, 0.30 mmol) was dissolved in 4 mL of a mixture of the solvents of methanol and tetrahydrofuran (V/V=1:1), followed by addition of 1M aqueous lithium hydroxide solution (1.5 mL, 1.50 mmol). The reaction solution was stirred for 2 hours. The resulting solution was concentrated under reduced pressure, mixed with 10 mL of water, 1M hydrochloric acid was added dropwise to adjust the pH to 2˜3, 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, and the residue was purified by TLC with elution system A to obtain the title compound 2-((S)-6-((3′-fluoro-2′,6′-dimethyl-4′-(((S)-tetrahydrofuran-3-yl)oxy)biphenyl-3-yl)methoxy)-2,3-dihydrobenzofuran-3-yl)acetic acid 19 (85 mg, yield 57.8%) as a white solid.

後処理

  1. concentrationThe resulting solution was concentrated under reduced pressure
  2. additionmixed with 10 mL of water, 1M hydrochloric acid
  3. additionwas added dropwise
  4. extractionextracted with ethyl acetate (20 mL×2)
  5. washThe combined organic extracts were washed with saturated sodium chloride solution (30 mL)
  6. dry with materialdried with anhydrous magnesium sulphate
  7. filtrationfiltered
  8. concentrationThe filtrate was concentrated under reduced pressure
  9. customthe residue was purified by TLC with elution system

出典と根拠

ORDレコード
ord-dcc3b1c01a1b4fd8a0a300a5a1e34059
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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