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Pyrazole → Ethyl 4-((1H-pyrazol-1-yl)methyl)-7-hydroxy-3-(4-methoxyphenyl)isoxazolo[4,5-c]pyridine-6-carboxylate

HRID 2388230
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HRID 2388230 반응식
Br[CH2:2][C:3]1[C:8]2[C:9]([C:12]3[CH:17]=[CH:16][C:15]([O:18][CH3:19])=[CH:14][CH:13]=3)=[N:10][O:11][C:7]=2[C:6]([O:20]C(=O)C(C)(C)C)=[C:5]([C:27]([O:29][CH2:30][CH3:31])=[O:28])[N:4]=1.[NH:32]1[CH:36]=[CH:35][CH:34]=[N:33]1.C1(C)C=CC=CC=1>CCOC(C)=O>[N:32]1([CH2:2][C:3]2[C:8]3[C:9]([C:12]4[CH:13]=[CH:14][C:15]([O:18][CH3:19])=[CH:16][CH:17]=4)=[N:10][O:11][C:7]=3[C:6]([OH:20])=[C:5]([C:27]([O:29][CH2:30][CH3:31])=[O:28])[N:4]=2)[CH:36]=[CH:35][CH:34]=[N:33]1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 1048Pyrazole2회HCID 1140TolueneHCID 67529608Ethyl 4-(bromomethyl)-3-(4-methoxyphenyl)-7-(pivaloyloxy)isoxazolo[4,5-c]pyridine-6-carboxylate

생성물 1

HCID 67529978Ethyl 4-((1H-pyrazol-1-yl)methyl)-7-hydroxy-3-(4-methoxyphenyl)isoxazolo[4,5-c]pyridine-6-carboxylate수율 69.8%

시약·촉매·용매 1

HCID 8857
Ethyl Acetate
용매

실험 절차

Ethyl 4-(bromomethyl)-3-(4-methoxyphenyl)-7-(pivaloyloxy)isoxazolo[4,5-c]pyridine-6-carboxylate (34 mg, 0.069 mmol) and pyrazole (9.4 mg, 0.138 mmol) were added to 1 mL of toluene, and the mixture was stirred at room temperature for 48 h. An additional equiv. of pyrazole was added, and the mixture was stirred at room temperature for 16 h and then at 45° C. for 16 h. The mixture was diluted with EtOAc (20 mL) and washed with 1M hydrochloric acid. The organic layer was dried over MgSO4 and concentrated, and the residue was purified by flash chromatography (0-100% EtOAc/hexanes) to give 19 mg of the title compound. MS: (+) m/z 395.29 (M+1).

후처리

  1. stirringthe mixture was stirred at room temperature for 16 h
  2. waitat 45° C. for 16 h
  3. washwashed with 1M hydrochloric acid
  4. dry with materialThe organic layer was dried over MgSO4
  5. concentrationconcentrated
  6. customthe residue was purified by flash chromatography (0-100% EtOAc/hexanes)

출처 및 근거

ORD 기록
ord-c72b2a0d0032460f968aa1f341c7b12f
출처 데이터셋
uspto-grants-2012_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08269008B2

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