Benzothiazole-6-carboxylic acid → N'-[3-[3-(trifluoromethyl)phenyl]propionyl]benzothiazole-6-carbohydrazide

HRID 452590

반응식

HRID 452590 반응식
[S:1]1[C:5]2[CH:6]=[C:7]([C:10]([OH:12])=O)[CH:8]=[CH:9][C:4]=2[N:3]=[CH:2]1.[F:13][C:14]([F:28])([F:27])[C:15]1[CH:16]=[C:17]([CH2:21][CH2:22][C:23]([NH:25][NH2:26])=[O:24])[CH:18]=[CH:19][CH:20]=1>O1CCCC1>[F:13][C:14]([F:27])([F:28])[C:15]1[CH:16]=[C:17]([CH2:21][CH2:22][C:23]([NH:25][NH:26][C:10]([C:7]2[CH:8]=[CH:9][C:4]3[N:3]=[CH:2][S:1][C:5]=3[CH:6]=2)=[O:12])=[O:24])[CH:18]=[CH:19][CH:20]=1

참가 물질

4

실험 절차

To a solution of benzothiazole-6-carboxylic acid (358 mg, 2.00 mmol) in tetrahydrofuran (10 mL) was added N,N′-carbonyldiimidazole (341 mg, 2.10 mmol) at room temperature, and the resulting mixture was stirred for 1 hr. To this reaction mixture was added 3-[3-(trifluoromethyl)phenyl]propanohydrazide (557 mg, 2.40 mmol), and the mixture was further stirred at room temperature for 24 hr. The reaction mixture was concentrated under reduced pressure, and ethyl acetate was added to the residue. The precipitate was collected by filtration, purified by basic silica gel column chromatography (tetrahydrofuran) and recrystallized from hexane/tetrahydrofuran to give the title compound (524 mg, yield 67%) as colorless crystals.

후처리

  1. stirringthe mixture was further stirred at room temperature for 24 hr
  2. concentrationThe reaction mixture was concentrated under reduced pressure, and ethyl acetate
  3. additionwas added to the residue
  4. filtrationThe precipitate was collected by filtration
  5. custompurified by basic silica gel column chromatography (tetrahydrofuran)
  6. customrecrystallized from hexane/tetrahydrofuran

출처 및 근거

ORD 기록
ord-a3a0ed6e055a466d858007180ec4798e
출처 데이터셋
uspto-grants-2013_07
특허 번호
US08492378B2

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