Hydrochloric Acid → [(3S)-6-({2',3',5',6'-tetramethyl-4'-[3-(methylsulfonyl)propoxy]biphenyl-3-yl}methoxy)-2,3-dihydro-1-benzofuran-3-yl]acetic acid

HRID 453460ノート

反応式

HRID 453460 の反応式
[CH3:1][C:2]1[C:7]([CH3:8])=[C:6]([O:9][CH2:10][CH2:11][CH2:12][S:13]([CH3:16])(=[O:15])=[O:14])[C:5]([CH3:17])=[C:4]([CH3:18])[C:3]=1[C:19]1[CH:24]=[CH:23][CH:22]=[C:21]([CH2:25][O:26][C:27]2[CH:40]=[CH:39][C:30]3[C@H:31]([CH2:34][C:35]([O:37]C)=[O:36])[CH2:32][O:33][C:29]=3[CH:28]=2)[CH:20]=1.CO.[OH-].[Na+].Cl>O.O1CCCC1>[CH3:1][C:2]1[C:7]([CH3:8])=[C:6]([O:9][CH2:10][CH2:11][CH2:12][S:13]([CH3:16])(=[O:15])=[O:14])[C:5]([CH3:17])=[C:4]([CH3:18])[C:3]=1[C:19]1[CH:24]=[CH:23][CH:22]=[C:21]([CH2:25][O:26][C:27]2[CH:40]=[CH:39][C:30]3[C@H:31]([CH2:34][C:35]([OH:37])=[O:36])[CH2:32][O:33][C:29]=3[CH:28]=2)[CH:20]=1

参加物

7

反応物 4

HCID 313Hydrochloric AcidHCID 887MethanolHCID 14798Sodium HydroxideHCID 59342570methyl [(3S)-6-({2',3',5',6'-tetramethyl-4'-[3-(methylsulfonyl)propoxy]biphenyl-3-yl}methoxy)-2,3-dihydro-1-benzofuran-3-yl]acetate

生成物 1

HCID 57414679[(3S)-6-({2',3',5',6'-tetramethyl-4'-[3-(methylsulfonyl)propoxy]biphenyl-3-yl}methoxy)-2,3-dihydro-1-benzofuran-3-yl]acetic acid収率 94%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 8028Tetrahydrofuran溶媒

反応条件

温度
50 °C

実験手順

To a solution of methyl [(3S)-6-({2′,3′,5′,6′-tetramethyl-4′-[3-(methylsulfonyl)propoxy]biphenyl-3-yl}methoxy)-2,3-dihydro-1-benzofuran-3-yl]acetate (0.457 g, 0.806 mmol) in a mixed solvent of methanol (2 mL) and tetrahydrofuran (4 mL) was added 2 M aqueous sodium hydroxide solution (1 mL), and the mixture was stirred at 50° C. for 2 hr. The reaction mixture was diluted with water, acidified with 1 M hydrochloric acid, and extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The precipitated crystals were recrystallized from heptane-ethyl acetate to give the title compound (0.417 g, yield 94%) as colorless crystals.

後処理

  1. extractionextracted with ethyl acetate
  2. washThe extract was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe precipitated crystals were recrystallized from heptane-ethyl acetate

出典と根拠

ORDレコード
ord-ae43e49acde44bfc99eac029364dfa1c
出典データセット
uspto-grants-2013_07
特許番号
US08492430B2

反応ノート

読み込み中…