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

HRID 504688
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HRID 504688 반응식
C(C1(C)[S:7][C:6]([C:8]2[NH:9][C:10]3[C:15]([CH:16]=2)=[CH:14][CH:13]=[CH:12][C:11]=3[N:17]([CH3:26])[S:18]([C:21]2[S:22][CH:23]=[CH:24][CH:25]=2)(=[O:20])=[O:19])=[N:5]C1)#N.[OH-].[Na+].O1CCCC1.C(O)(=O)[CH2:36][C:37]([CH2:42]C(O)=O)([C:39]([OH:41])=[O:40])O>C(O)C>[CH3:42][C:37]1([C:39]([OH:41])=[O:40])[S:7][C:6]([C:8]2[NH:9][C:10]3[C:15]([CH:16]=2)=[CH:14][CH:13]=[CH:12][C:11]=3[N:17]([CH3:26])[S:18]([C:21]2[S:22][CH:23]=[CH:24][CH:25]=2)(=[O:20])=[O:19])=[N:5][CH2:36]1
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참가 물질

6

반응물 4

HCID 311Citric AcidHCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 59135902N-[2-(5-cyano-5-methyl-4,5-dihydro-1,3-thiazol-2-yl)-1H-indol-7-yl]-N-methylthiophene-2-sulfonamide

생성물 1

HCID 574761205-methyl-2-{7-[methyl(2-thienylsulfonyl)amino]-1H-indol-2-yl)-4,5-dihydro-1,3-thiazole-5-carboxylic acid수율 69%

시약·촉매·용매

1
HCID 702Ethanol용매

실험 절차

A mixture of N-[2-(5-cyano-5-methyl-4,5-dihydro-1,3-thiazol-2-yl)-1H-indol-7-yl]-N-methylthiophene-2-sulfonamide (0.15 g), 2N aqueous sodium hydroxide solution (0.36 ml), tetrahydrofuran (3 ml) and ethanol (3 ml) was heated under reflux for 4 hr. 10% Aqueous citric acid solution was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried (MgSO4), and concentrated. The residue was subjected to silica gel column chromatography to give the title compound (0.11 g, yield 69%) as yellow crystals from a fraction eluted with tetrahydrofuran. melting point >232° C. (decomposition).

후처리

  1. temperaturewas heated
  2. temperatureunder reflux for 4 hr
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe ethyl acetate layer was washed with saturated brine
  5. dry with materialdried (MgSO4)
  6. concentrationconcentrated

출처 및 근거

ORD 기록
ord-867ffda24c014b98b8e3c462a266f6f5
출처 데이터셋
uspto-grants-2010_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07777047B2

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