Diisopropylethylamine → (2S,5R)-6-(allyloxy)-2-((tert-butyldimethylsilyloxy)methyl)-1,6-diazabicyclo[3.2.1]oct-3-en-7-one

HRID 627159노트

반응식

HRID 627159 반응식
[CH2:1]([O:4][NH:5][C@@H:6]1[CH:11]=[CH:10][C@@H:9]([CH2:12][O:13][Si:14]([C:17]([CH3:20])([CH3:19])[CH3:18])([CH3:16])[CH3:15])[NH:8][CH2:7]1)[CH:2]=[CH2:3].C(N(C(C)C)C(C)C)C.[C:30](=O)(OC(Cl)(Cl)Cl)[O:31]C(Cl)(Cl)Cl>C(#N)C>[CH2:1]([O:4][N:5]1[C:30](=[O:31])[N:8]2[CH2:7][C@H:6]1[CH:11]=[CH:10][C@H:9]2[CH2:12][O:13][Si:14]([C:17]([CH3:20])([CH3:19])[CH3:18])([CH3:15])[CH3:16])[CH:2]=[CH2:3]

참가 물질

5

반응물 3

HCID 81531DiisopropylethylamineHCID 94429TriphosgeneHCID 89863150O-allyl-N-((3R,6S)-6-((tert-butyldimethylsilyloxy)methyl)-1,2,3,6-tetrahydropyridin-3-yl)hydroxylamine2회

생성물 1

HCID 89851884(2S,5R)-6-(allyloxy)-2-((tert-butyldimethylsilyloxy)methyl)-1,6-diazabicyclo[3.2.1]oct-3-en-7-one수율 188.6%

시약·촉매·용매 1

HCID 6342Acetonitrile용매2회

반응 조건

온도
0 °C

실험 절차

To a stirred solution of O-allyl-N-((3R,6S)-6-((tert-butyldimethylsilyloxy)methyl)-1,2,3,6-tetrahydropyridin-3-yl)hydroxylamine (Intermediate 128, 2.0 g, 6.70 mmol) in acetonitrile (560 mL), N-ethyl-N-isopropylpropan-2-amine (4.67 ml, 26.80 mmol) was added. Bis(trichloromethyl) carbonate (0.795 g, 2.68 mmol) dissolved in 40 mL CH3CN was added via a syringe pump (at a rate 0.1 ml/min) at 0° C. The reaction mixture was stirred at 0° C. for 1 hr. It was then allowed to stir at room temperature overnight. The mixture was then concentrated and diluted with EtOAc (50 mL). The organic layer was washed with water, brine, dried over MgSO4, filtered and concentrated. The residue was purified by silica gel column (12 g, 0-25% Hex/EA) to give the desired product as a colorless oil (1.64 g).

후처리

  1. additionwas added via a syringe pump (at a rate 0.1 ml/min) at 0° C
  2. stirringto stir at room temperature overnight
  3. concentrationThe mixture was then concentrated
  4. additiondiluted with EtOAc (50 mL)
  5. washThe organic layer was washed with water, brine
  6. dry with materialdried over MgSO4
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThe residue was purified by silica gel column (12 g, 0-25% Hex/EA)

출처 및 근거

ORD 기록
ord-f86c167064fd4865b7141b679157ba25
출처 데이터셋
uspto-grants-2016_04
특허 번호
US09309245B2

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