Citric Acid → (2-{5-(2-methoxyethoxy)-7-[methyl(2-thienylsulfonyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetic acid

HRID 1960531노트

반응식

HRID 1960531 반응식
C([O:3][C:4](=[O:35])[CH2:5][CH:6]1[S:10][C:9]([C:11]2[NH:12][C:13]3[C:18]([CH:19]=2)=[CH:17][C:16]([O:20][CH2:21][CH2:22][O:23][CH3:24])=[CH:15][C:14]=3[N:25]([CH3:34])[S:26]([C:29]2[S:30][CH:31]=[CH:32][CH:33]=2)(=[O:28])=[O:27])=[N:8][CH2:7]1)C.[OH-].[Na+].O1CCCC1.C(O)(=O)CC(CC(O)=O)(C(O)=O)O>C(O)C>[CH3:24][O:23][CH2:22][CH2:21][O:20][C:16]1[CH:17]=[C:18]2[C:13](=[C:14]([N:25]([CH3:34])[S:26]([C:29]3[S:30][CH:31]=[CH:32][CH:33]=3)(=[O:28])=[O:27])[CH:15]=1)[NH:12][C:11]([C:9]1[S:10][CH:6]([CH2:5][C:4]([OH:35])=[O:3])[CH2:7][N:8]=1)=[CH:19]2

참가 물질

6

반응물 4

HCID 311Citric AcidHCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 59303535ethyl(2-{5-(2-methoxyethoxy)-7-[methyl(2-thienylsulfonyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetate

생성물 1

HCID 68460040(2-{5-(2-methoxyethoxy)-7-[methyl(2-thienylsulfonyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetic acid수율 98.5%

시약·촉매·용매 1

HCID 702Ethanol용매

실험 절차

A mixture of ethyl(2-{5-(2-methoxyethoxy)-7-[methyl(2-thienylsulfonyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetate (300 mg), 1N aqueous sodium hydroxide solution (2 mL), tetrahydrofuran (2 mL) and ethanol (2 mL) was stirred at room temperature for 15 hr. The reaction mixture was acidified with aqueous citric acid solution, and extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried (MgSO4), and concentrated to give the title compound (280 mg, yield 97%) as yellow crystals. The crystals were recrystallized from ethyl acetate-hexane to give yellow prism crystals. melting point 113-114° C.

후처리

  1. extractionextracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with saturated brine
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated

출처 및 근거

ORD 기록
ord-787c25f27fdb43ccbf3032a56e687b9a
출처 데이터셋
uspto-grants-2013_04
특허 번호
US08410087B2

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