2,6-Lutidine → N-(t-Butyldimethylsilyloxycarbonyl)-L-methionine methyl ester

HRID 1904446노트

반응식

HRID 1904446 반응식
[CH3:1][O:2][C:3](=[O:17])[C@H:4]([CH2:13][CH2:14][S:15][CH3:16])[NH:5][C:6]([O:8]C(C)(C)C)=[O:7].N1C(C)=CC=CC=1C.[Si:26](OS(C(F)(F)F)(=O)=O)([C:29]([CH3:32])([CH3:31])[CH3:30])([CH3:28])[CH3:27].[Cl-].[NH4+]>C(Cl)Cl>[CH3:1][O:2][C:3](=[O:17])[C@H:4]([CH2:13][CH2:14][S:15][CH3:16])[NH:5][C:6]([O:8][Si:26]([C:29]([CH3:32])([CH3:31])[CH3:30])([CH3:28])[CH3:27])=[O:7]

참가 물질

6

반응물 4

HCID 79372,6-LutidineHCID 25517Ammonium ChlorideHCID 123564tert-Butyldimethylsilyl trifluoromethanesulphonateHCID 11097398(S)-Methyl 2-((tert-butoxycarbonyl)amino)-4-(methylthio)butanoate

생성물 1

HCID 13934327N-(t-Butyldimethylsilyloxycarbonyl)-L-methionine methyl ester

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a methylene chloride solution (1.0 ml) of N-t-butoxycarbonyl-L-methionine methyl ester (131.5 mg, 0.5 mmol) and 2,6-lutidine (0.116 ml, 1.0 mmol), t-butyldimethylsilyltrifluoromethane sulfonate (TBDMSOTf) (0.172 ml, 0.75 mmol) was added dropwise at room temperature in a nitrogen atmosphere. After the mixture was stirred for 15 minutes, a saturated aqueous solution of ammonium chloride (2 ml) was added to quench the reaction and extraction with ether was conducted. The organic layer was dried over anhydrous magnesium sulfate and filtered. By distilling off the solvent under vacuum, the titled compound was obtained in an amount of 146 mg.

후처리

  1. customto quench
  2. customthe reaction and extraction with ether
  3. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. distillationBy distilling off the solvent under vacuum

출처 및 근거

ORD 기록
ord-54293b7aebdf400ea2dde9437087daa5
출처 데이터셋
uspto-grants-1989_06
특허 번호
US04837349

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