Methyl iodide → 1-(4-Benzylpiperazin-1-yl)-3-methyltetrahydropyrimidin-2(1H)-one

HRID 20232노트

반응식

HRID 20232 반응식
C[Si]([N-][Si](C)(C)C)(C)C.[Li+].[CH2:11]([N:18]1[CH2:23][CH2:22][N:21]([N:24]2[CH2:29][CH2:28][CH2:27][NH:26][C:25]2=[O:30])[CH2:20][CH2:19]1)[C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1.[CH3:31]I>C1COCC1>[CH2:11]([N:18]1[CH2:23][CH2:22][N:21]([N:24]2[CH2:29][CH2:28][CH2:27][N:26]([CH3:31])[C:25]2=[O:30])[CH2:20][CH2:19]1)[C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1

참가 물질

5

반응물 3

HCID 6328Methyl iodideHCID 2733832Lithium HexamethyldisilazideHCID 672325181-(4-Benzylpiperazin-1-yl)tetrahydropyrimidin-2(1H)-one

생성물 1

HCID 684188291-(4-Benzylpiperazin-1-yl)-3-methyltetrahydropyrimidin-2(1H)-one

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

Lithium bis(trimethylsilyl)amide (1M THF solution; 1.5 mL) was added to a solution of 1-(4-benzylpiperazin-1-yl)tetrahydropyrimidin-2(1H)-one (0.27 g) obtained in Example 25a) in THF (10 mL) at 0° C., and the mixture was stirred at room temperature for one hour. Methyl iodide (0.09 mL) was added thereto, and the mixture was stirred at room temperature for 15 hours. The reaction mixture was concentrated under reduced pressure, and the residue was diluted with an aqueous sodium bicarbonate solution, and extracted with dichloromethane. The extract was dried over anhydrous sodium sulfate, and the solvent was distilled off under reduced pressure to obtain the title compound (0.30 g, quantitative) as a brown oil.

후처리

  1. stirringthe mixture was stirred at room temperature for 15 hours
  2. concentrationThe reaction mixture was concentrated under reduced pressure
  3. additionthe residue was diluted with an aqueous sodium bicarbonate solution
  4. extractionextracted with dichloromethane
  5. dry with materialThe extract was dried over anhydrous sodium sulfate
  6. distillationthe solvent was distilled off under reduced pressure

출처 및 근거

ORD 기록
ord-576aec26067c4544b215ef8f9df8c15b
출처 데이터셋
uspto-grants-2010_06
특허 번호
US07745623B2

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