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Dichloromethane → Benzyl-[(1r,3s,4s)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-({[tert-butyl(dimethyl)-silyl]oxy}methyl)cyclopentyl]carbamate

HRID 447696
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HRID 447696 반응식
[Si:1]([O:8][C@@H:9]1[C@H:13]([CH2:14][O:15][Si:16]([C:19]([CH3:22])([CH3:21])[CH3:20])([CH3:18])[CH3:17])[CH2:12][C@@H:11]([NH2:23])[CH2:10]1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].C(Cl)Cl.C(N(CC)CC)C.Cl[C:35]([O:37][CH2:38][C:39]1[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=1)=[O:36]>>[CH2:38]([O:37][C:35](=[O:36])[NH:23][C@@H:11]1[CH2:12][C@@H:13]([CH2:14][O:15][Si:16]([C:19]([CH3:22])([CH3:21])[CH3:20])([CH3:17])[CH3:18])[C@@H:9]([O:8][Si:1]([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2])[CH2:10]1)[C:39]1[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=1
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참가 물질

5

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HCID 6344DichloromethaneHCID 8471TriethylamineHCID 10387Benzyl chloroformateHCID 59671204(1R,3S,4S)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-({[tert-butyl(dimethyl)silyl]oxy}methyl)cyclopentanamine

생성물 1

HCID 131729129Benzyl-[(1r,3s,4s)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-({[tert-butyl(dimethyl)-silyl]oxy}methyl)cyclopentyl]carbamate

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온도
23 °C

실험 절차

To a solution of (1R,3S,4S)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-({[tert-butyl(dimethyl)silyl]oxy}methyl)cyclopentanamine (0.098 g, 0.00027 mol) in Methylene chloride (2.0 mL, 0.031 mol) at 0° C. was added triethylamine (0.076 mL, 0.00054 mol) and benzyl chloroformate (0.044 mL, 0.00031 mol). The reaction was warmed to 23° C. overnight. The reaction was quenched by addition of water3 and the mixture was extracted with methylene chloride (3×). The organic layers were washed with brine, dried (Na2SO4), filtered and concentrated. The residue was purified by flash chromatography (0 to 8% EtOAc/hexanes) to obtain 73 mg (54%).

후처리

  1. customThe reaction was quenched by addition of water3
  2. extractionthe mixture was extracted with methylene chloride (3×)
  3. washThe organic layers were washed with brine
  4. dry with materialdried (Na2SO4)
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe residue was purified by flash chromatography (0 to 8% EtOAc/hexanes)
  8. customto obtain 73 mg (54%)

출처 및 근거

ORD 기록
ord-16e6cf94d391463992d7b3b2cb8232a1
출처 데이터셋
uspto-grants-2013_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08481550B2

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