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Sodium Chloride → 6-[3-(3-Fluoro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-nicotinic acid methyl ester

HRID 83204
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인쇄 미리보기

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HRID 83204 반응식
[H-].[Na+].[F:3][C:4]1[CH:5]=[C:6]([C:10]2[C:14]([CH2:15][OH:16])=[C:13]([CH3:17])[O:12][N:11]=2)[CH:7]=[CH:8][CH:9]=1.Cl[C:19]1[CH:28]=[CH:27][C:22]([C:23]([O:25][CH3:26])=[O:24])=[CH:21][N:20]=1.[Cl-].[Na+]>C1COCC1>[CH3:26][O:25][C:23](=[O:24])[C:22]1[CH:27]=[CH:28][C:19]([O:16][CH2:15][C:14]2[C:10]([C:6]3[CH:7]=[CH:8][CH:9]=[C:4]([F:3])[CH:5]=3)=[N:11][O:12][C:13]=2[CH3:17])=[N:20][CH:21]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 5234Sodium ChlorideHCID 24758Sodium hydrideHCID 254249Methyl 6-chloropyridine-3-carboxylateHCID 67157856(3-(3-Fluorophenyl)-5-methylisoxazol-4-yl)methanol

생성물 1

HCID 684418946-[3-(3-Fluoro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-nicotinic acid methyl ester수율 68%

시약·촉매·용매 1

HCID 8028
Tetrahydrofuran
용매
3회

실험 절차

To a suspension of sodium hydride (55% dispersion in mineral oil, 852 mg, 20 mmol) in THF (27 mL) was added a solution of [3-(3-fluoro-phenyl)-5-methyl-isoxazol-4-yl]-methanol (3.68 g, 18 mmol) in THF (54 mL) at 0° C. and the reaction mixture warmed to room temperature over 30 min. Then a solution of methyl 6-chloronicotinate (3.35 g, 20 mmol) in THF (1.5 mL) was added dropwise at 0° C. and the reaction mixture was stirred at room temperature overnight. The reaction mixture was then poured into aqueous sodium chloride (saturated) and the mixture was extracted with ethyl acetate. The combined organic layers were then washed with water and brine and then dried over sodium sulfate, filtered and evaporated. Purification by chromatography (SiO2, heptane:ethyl acetate=7:3) afforded the title compound (4.1 g, 68%) which was obtained as a white solid. MS: m/e=343.1 [M+H]+.

후처리

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe combined organic layers were then washed with water and brine
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. customevaporated
  6. customPurification by chromatography (SiO2, heptane:ethyl acetate=7:3)

출처 및 근거

ORD 기록
ord-3ab663b664e245d3bc0f37b160910179
출처 데이터셋
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08846719B2

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