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Imidazole → Tert-butyl (3-((tert-butyldimethylsilyl)oxy)-1-(2-(6-chloro-4-(isopropylamino)nicotinoyl)hydrazinyl)-1-oxopropan-2-yl)carbamate

HRID 877579
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HRID 877579 반응식
[Cl:1][C:2]1[CH:24]=[C:23]([NH:25][CH:26]([CH3:28])[CH3:27])[C:5]([C:6]([NH:8][NH:9][C:10](=[O:22])[CH:11]([NH:14][C:15](=[O:21])[O:16][C:17]([CH3:20])([CH3:19])[CH3:18])[CH2:12][OH:13])=[O:7])=[CH:4][N:3]=1.N1C=CN=C1.[C:34]([Si:38](Cl)([CH3:40])[CH3:39])([CH3:37])([CH3:36])[CH3:35]>C(Cl)Cl>[Si:38]([O:13][CH2:12][CH:11]([NH:14][C:15](=[O:21])[O:16][C:17]([CH3:20])([CH3:18])[CH3:19])[C:10]([NH:9][NH:8][C:6](=[O:7])[C:5]1[C:23]([NH:25][CH:26]([CH3:28])[CH3:27])=[CH:24][C:2]([Cl:1])=[N:3][CH:4]=1)=[O:22])([C:34]([CH3:37])([CH3:36])[CH3:35])([CH3:40])[CH3:39]
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참가 물질

5

반응물 3

HCID 795ImidazoleHCID 28928tert-Butyldimethylsilyl chlorideHCID 131732603Tert-butyl (1-(2-(6-chloro-4-(isopropylamino)nicotinoyl)hydrazinyl)-3-hydroxy-1-oxopropan-2-yl)carbamate

생성물 1

HCID 131732604Tert-butyl (3-((tert-butyldimethylsilyl)oxy)-1-(2-(6-chloro-4-(isopropylamino)nicotinoyl)hydrazinyl)-1-oxopropan-2-yl)carbamate

시약·촉매·용매 1

HCID 6344
Dichloromethane
용매
2회

실험 절차

tert-butyl (1-(2-(6-chloro-4-(isopropylamino)nicotinoyl)hydrazinyl)-3-hydroxy-1-oxopropan-2-yl)carbamate (53) (1 g, 2 mmol) in DCM (10 mL), imidazole (7 mmol, 3 equiv.) was added and stirred at room temperature for 10 min. Reaction mixture was cooled to 0° C., t-butyl dimethyl silyl chloride (3.6 mmol, 1.5 equiv.) was added in portions and stirred the reaction mixture overnight at room temperature. Diluted the reaction mixture using DCM, the DCM layer was washed with water. The organic layer was collected, dried over Na2SO4, filtered and concentrated to get tert-butyl (3-((tert-butyldimethylsilyl)oxy)-1-(2-(6-chloro-4-(isopropylamino)nicotinoyl)hydrazinyl)-1-oxopropan-2-yl)carbamate (54). LC/MS: Purospher@star RP-18, 4×55 mm, 3 μm; Solvent A=10% ACN: 90% H2O: 20 mM NH4OAc; Solvent B=90% ACN: 10% H2O: 20 mM NH4COOAc; gradient 0-100% B over 1.5 min (3.2 min run time); retention time: 2.319 min; LCMS (ES-API), m/z 530.2 (M+H).

후처리

  1. customReaction mixture
  2. temperaturewas cooled to 0° C.
  3. stirringstirred the reaction mixture overnight at room temperature
  4. additionDiluted the reaction mixture
  5. washthe DCM layer was washed with water
  6. customThe organic layer was collected
  7. dry with materialdried over Na2SO4
  8. filtrationfiltered
  9. concentrationconcentrated

출처 및 근거

ORD 기록
ord-70b2a3e86bc84878a06ff36ed168457f
출처 데이터셋
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08987311B2

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