Methyl iodide → (R)-4-[3-fluoro-4-(4-methoxymethyl-2-oxooxazolidin-3-yl)benzoyl]piperazine-1-carboxylic acid tert-butyl ester

HRID 1804040노트

반응식

HRID 1804040 반응식
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14](=[O:30])[C:15]2[CH:20]=[CH:19][C:18]([N:21]3[C@H:25]([CH2:26][OH:27])[CH2:24][O:23][C:22]3=[O:28])=[C:17]([F:29])[CH:16]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[H-].[Na+].[CH3:33]I>CN(C)C=O.[Cl-].[Na+].O>[C:1]([O:5][C:6]([N:8]1[CH2:9][CH2:10][N:11]([C:14](=[O:30])[C:15]2[CH:20]=[CH:19][C:18]([N:21]3[C@H:25]([CH2:26][O:27][CH3:33])[CH2:24][O:23][C:22]3=[O:28])=[C:17]([F:29])[CH:16]=2)[CH2:12][CH2:13]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

참가 물질

6

반응물 3

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 58484618(R)-4-[3-fluoro-4-(4-hydroxymethyl-2-oxooxazolidin-3-yl)benzoyl]piperazine-1-carboxylic acid tert-butyl ester

생성물 1

HCID 54755121(R)-4-[3-fluoro-4-(4-methoxymethyl-2-oxooxazolidin-3-yl)benzoyl]piperazine-1-carboxylic acid tert-butyl ester수율 56.8%

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 57417360Sodium chloride; water용매

실험 절차

(R)-4-[3-fluoro-4-(4-hydroxymethyl-2-oxooxazolidin-3-yl)benzoyl]piperazine-1-carboxylic acid tert-butyl ester (494 mg) described in Preparation Example 92 was dissolved in N,N-dimethylformamide (3.7 mL), sodium hydride (51 mg, 60% in oil) was added under ice-cooling and the mixture was stirred. Then, under ice-cooling, methyl iodide (182 mg) was added and the mixture was stirred at room temperature. The reaction mixture was added to saturated brine under ice-cooling and the mixture was extracted with ethyl acetate. The organic layer was washed twice with saturated brine, and dried over sodium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by column chromatography (chloroform:methanol) to give the title compound (290 mg).

후처리

  1. temperaturecooling
  2. temperatureThen, under ice-cooling
  3. stirringthe mixture was stirred at room temperature
  4. temperaturecooling
  5. extractionthe mixture was extracted with ethyl acetate
  6. washThe organic layer was washed twice with saturated brine
  7. dry with materialdried over sodium sulfate
  8. customthe solvent was evaporated under reduced pressure
  9. customThe residue was purified by column chromatography (chloroform:methanol)

출처 및 근거

ORD 기록
ord-cc50a1867fde495b9ab1517c5e1eb1c2
출처 데이터셋
uspto-grants-2013_01
특허 번호
US08354401B2

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