Hydrochloric Acid → Fasiglifam

HRID 453462ノート

反応式

HRID 453462 の反応式
[CH3:1][C:2]1[CH:7]=[C:6]([O:8][CH2:9][CH2:10][CH2:11][S:12]([CH3:15])(=[O:14])=[O:13])[CH:5]=[C:4]([CH3:16])[C:3]=1[C:17]1[CH:22]=[CH:21][CH:20]=[C:19]([CH2:23][O:24][C:25]2[CH:38]=[CH:37][C:28]3[C@H:29]([CH2:32][C:33]([O:35]C)=[O:34])[CH2:30][O:31][C:27]=3[CH:26]=2)[CH:18]=1.CO.[OH-].[Na+].Cl>O.O1CCCC1>[CH3:16][C:4]1[CH:5]=[C:6]([O:8][CH2:9][CH2:10][CH2:11][S:12]([CH3:15])(=[O:14])=[O:13])[CH:7]=[C:2]([CH3:1])[C:3]=1[C:17]1[CH:22]=[CH:21][CH:20]=[C:19]([CH2:23][O:24][C:25]2[CH:38]=[CH:37][C:28]3[C@H:29]([CH2:32][C:33]([OH:35])=[O:34])[CH2:30][O:31][C:27]=3[CH:26]=2)[CH:18]=1

参加物

7

反応物 4

HCID 313Hydrochloric AcidHCID 887MethanolHCID 14798Sodium HydroxideHCID 57414917Methyl [(3S)-6-({2',6'-dimethyl-4'-[3-(methylsulfonyl)propoxy]biphenyl-3-yl}methoxy)-2,3-dihydro-1-benzofuran-3-yl]acetate

生成物 1

HCID 24857286Fasiglifam収率 88.4%

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′,6′-dimethyl-4′-[3-(methylsulfonyl)propoxy]biphenyl-3-yl}methoxy)-2,3-dihydro-1-benzofuran-3-yl]acetate (0.438 g, 0.813 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 (0.377 g, yield 88%) 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-ceeb9990523649d49e4a012d839da188
出典データセット
uspto-grants-2013_07
特許番号
US08492430B2

反応ノート

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