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Citric Acid → N-{2-[5-(2-hydroxyethyl)-4,5-dihydro-1,3-thiazol-2-yl]-1H-indol-7-yl}-2-methoxy-N-methylbenzenesulfonamide

HRID 1960488
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HRID 1960488 반응식
C([O:3][C:4](=O)[CH2:5][CH:6]1[S:10][C:9]([C:11]2[NH:12][C:13]3[C:18]([CH:19]=2)=[CH:17][CH:16]=[CH:15][C:14]=3[N:20]([S:22]([C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=2[O:31][CH3:32])(=[O:24])=[O:23])[CH3:21])=[N:8][CH2:7]1)C.[BH4-].[Li+].O1CCCC1.C(O)(=O)CC(CC(O)=O)(C(O)=O)O>CO>[OH:3][CH2:4][CH2:5][CH:6]1[S:10][C:9]([C:11]2[NH:12][C:13]3[C:18]([CH:19]=2)=[CH:17][CH:16]=[CH:15][C:14]=3[N:20]([CH3:21])[S:22]([C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=2[O:31][CH3:32])(=[O:24])=[O:23])=[N:8][CH2:7]1
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참가 물질

6

반응물 4

HCID 311Citric AcidHCID 8028TetrahydrofuranHCID 4148881Lithium borohydrideHCID 59135846Ethyl(2-{7-[[(2-methoxyphenyl)sulfonyl](methyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetate

생성물 1

HCID 59135716N-{2-[5-(2-hydroxyethyl)-4,5-dihydro-1,3-thiazol-2-yl]-1H-indol-7-yl}-2-methoxy-N-methylbenzenesulfonamide수율 69%

시약·촉매·용매 1

HCID 887Methanol용매

실험 절차

To a mixture of ethyl(2-{7-[[(2-methoxyphenyl)sulfonyl](methyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetate (140 mg), lithium borohydride (40 mg) and tetrahydrofuran (5 mL) was added methanol (1 mL), and the mixture'was stirred at room temperature for 2 hr. Aqueous citric acid solution was added to the reaction solution, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The obtained residue was subjected to silica gel column chromatography (ethyl acetate:hexane=6:4-10:0), and the obtained pale-yellow oil was crystallized from ethyl acetate-hexane to give the title compound (87 mg, yield: 69%) as colorless needle crystals. MS:446(MH+). melting point 154-155° C.

후처리

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customthe obtained pale-yellow oil was crystallized from ethyl acetate-hexane

출처 및 근거

ORD 기록
ord-43395a1cd3ff4defac1ac183d728bbac
출처 데이터셋
uspto-grants-2013_04
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08410087B2

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