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

HRID 2239132
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HRID 2239132 반응식
[S:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[S:6]([NH:9][C:10]1[CH:11]=[C:12]([O:30][C:31]([F:34])([F:33])[F:32])[CH:13]=[C:14]2[C:18]=1[NH:17][C:16]([C:19]1[S:20][CH:21]([CH2:24][C:25]([O:27]CC)=[O:26])[CH2:22][N:23]=1)=[CH:15]2)(=[O:8])=[O:7].[OH-].[Na+].O1CCCC1.C(O)(=O)CC(CC(O)=O)(C(O)=O)O>C(O)C>[S:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[S:6]([NH:9][C:10]1[CH:11]=[C:12]([O:30][C:31]([F:32])([F:34])[F:33])[CH:13]=[C:14]2[C:18]=1[NH:17][C:16]([C:19]1[S:20][CH:21]([CH2:24][C:25]([OH:27])=[O:26])[CH2:22][N:23]=1)=[CH:15]2)(=[O:7])=[O:8]
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참가 물질

6

반응물 4

HCID 311Citric AcidHCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 57476351ethyl{2-(7-[(2-thienylsulfonyl)amino]-5-(trifluoromethoxy)-1H-indol-2-yl]-4,5-dihydro-1,3-thiazol-5-yl}acetate

생성물 1

HCID 59135925{2-[7-[(2-thienylsulfonyl)amino]-5-(trifluoromethoxy)-1H-indol-2-yl]-4,5-dihydro-1,3-thiazol-5-yl}acetic acid수율 66.3%

시약·촉매·용매 1

HCID 702Ethanol용매

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온도
50 °C

실험 절차

A mixture of ethyl {2-[7-[(2-thienylsulfonyl)amino]-5-(trifluoromethoxy)-1H-indol-2-yl]-4,5-dihydro-1,3-thiazol-5-yl}acetate (780 mg), 1N aqueous sodium hydroxide solution (5 mL), tetrahydrofuran (5 mL) and ethanol (5 mL) was stirred at 50° C. for 30 min. 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. The residue was crystallized from ethyl acetate-diisopropyl ether to give the title compound (490 mg, yield 64%) as brown crystals. The crystals were recrystallized from ethyl acetate-hexane to give brown prism crystals. melting point 247-248° C. (decomposition).

후처리

  1. extractionextracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with saturated brine
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated
  5. customThe residue was crystallized from ethyl acetate-diisopropyl ether

출처 및 근거

ORD 기록
ord-e380ae17f07144859838e4167e26326c
출처 데이터셋
uspto-grants-2010_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07718798B2

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