Water → 5-(t-butoxycarbonyl-N-methylamino)-1,2,3,3a,8,8a-hexahydro-1,3a,8-trimethylpyrrolo[2,3-b]indole

HRID 703540노트

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HRID 703540 반응식
[C:1]([O:5][C:6]([NH:8][C:9]1[CH:10]=[C:11]2[C:15](=[CH:16][CH:17]=1)[N:14]([CH3:18])[CH:13]1[N:19]([CH3:22])[CH2:20][CH2:21][C:12]21[CH3:23])=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH3:24][Si]([N-][Si](C)(C)C)(C)C.[Li+].COS(OC)(=O)=O.O>C1COCC1.C(OCC)(=O)C>[C:1]([O:5][C:6]([N:8]([C:9]1[CH:10]=[C:11]2[C:15](=[CH:16][CH:17]=1)[N:14]([CH3:18])[CH:13]1[N:19]([CH3:22])[CH2:20][CH2:21][C:12]21[CH3:23])[CH3:24])=[O:7])([CH3:4])([CH3:3])[CH3:2]

참가 물질

7

반응물 4

HCID 962WaterHCID 6497Dimethyl SulfateHCID 2733832Lithium HexamethyldisilazideHCID 19908910HCID 19908910, 화합물

생성물 1

HCID 199089055-(t-butoxycarbonyl-N-methylamino)-1,2,3,3a,8,8a-hexahydro-1,3a,8-trimethylpyrrolo[2,3-b]indole

시약·촉매·용매 2

HCID 8028Tetrahydrofuran용매3회HCID 8857Ethyl Acetate용매

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온도
-78 °C

실험 절차

5-(t-Butyloxycarbonylamino)-1,2,3,3a,8,8a-hexahydro-1,3a,8-trimethylpyrrolo[2,3-b]indole (1.7 g) was dissolved in dry THF (15 ml) under nitrogen and cooled to -78° C. in a dry ice/acetone bath. A 1M solution of lithium bis(trimethylsilyl)amide (7.2 ml) in THF was added via a syringe. The solution was stirred at -78° C. for 15 minutes, warmed to room temperature and again cooled to -78° C. before the addition of dimethylsulfate (0.74 g) in THF (5 ml) via syringe. The mixture was stirred for 1 hour and allowed to warm to ambient temperature and water was added in order to quench the reaction. Ethyl acetate (100 ml) was added and the mixture was washed with brine (20 ml), dried (Na2SO4), concentrated and purified by flash chromatography (eluting with 15% MeOH/EtOAc). The pure fractions were concentrated to give 5-(t-butoxycarbonyl-N-methylamino)-1,2,3,3a,8,8a-hexahydro-1,3a,8-trimethylpyrrolo[2,3-b]indole (0.42 g).

후처리

  1. temperaturewarmed to room temperature
  2. stirringThe mixture was stirred for 1 hour
  3. temperatureto warm to ambient temperature
  4. customto quench
  5. customthe reaction
  6. washthe mixture was washed with brine (20 ml)
  7. dry with materialdried (Na2SO4)
  8. concentrationconcentrated
  9. custompurified by flash chromatography (eluting with 15% MeOH/EtOAc)
  10. concentrationThe pure fractions were concentrated

출처 및 근거

ORD 기록
ord-06b6bdc7351240b7bb36d6bb8bdde8fb
출처 데이터셋
uspto-grants-1991_01
특허 번호
US04983616

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