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Stannane, tributyl(1-ethoxyethenyl)- → (1R,2R)-2-((6-((6-(1-ethoxyvinyl)-3H-imidazo[4,5-b]pyridin-3-yl)methyl)benzo[d]thiazol-2-yl)amino)cyclohexanol

HRID 1848107
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1848107
Br[C:2]1[CH:3]=[C:4]2[N:10]=[CH:9][N:8]([CH2:11][C:12]3[CH:28]=[CH:27][C:15]4[N:16]=[C:17]([NH:19][C@@H:20]5[CH2:25][CH2:24][CH2:23][CH2:22][C@H:21]5[OH:26])[S:18][C:14]=4[CH:13]=3)[C:5]2=[N:6][CH:7]=1.C([Sn](CCCC)(CCCC)[C:34]([O:36][CH2:37][CH3:38])=[CH2:35])CCC>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].CN(C=O)C>[CH2:37]([O:36][C:34]([C:2]1[CH:3]=[C:4]2[N:10]=[CH:9][N:8]([CH2:11][C:12]3[CH:28]=[CH:27][C:15]4[N:16]=[C:17]([NH:19][C@@H:20]5[CH2:25][CH2:24][CH2:23][CH2:22][C@H:21]5[OH:26])[S:18][C:14]=4[CH:13]=3)[C:5]2=[N:6][CH:7]=1)=[CH2:35])[CH3:38]
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Komponenten

5

Edukt 2

HCID 619414Stannane, tributyl(1-ethoxyethenyl)-HCID 86681028(1R,2R)-2-((6-((6-bromo-3H-imidazo[4,5-b]pyridin-3-yl)methyl)benzo[d]thiazol-2-yl)amino)cyclohexanol

Produkt 1

HCID 86681083(1R,2R)-2-((6-((6-(1-ethoxyvinyl)-3H-imidazo[4,5-b]pyridin-3-yl)methyl)benzo[d]thiazol-2-yl)amino)cyclohexanolAusbeute 47,1 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 9811564
Bis(dibenzylideneacetone)palladium
Katalysator
HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
110 °C

Versuchsvorschrift

A stirred mixture of (1R,2R)-2-((6-((6-bromo-3H-imidazo[4,5-b]pyridin-3-yl)methyl)benzo[d]thiazol-2-yl)amino)cyclohexanol (693 mg, 1.51 mmol) from Example 29, tributyl (1-ethoxyvinyl)tin (1.10 g, 3.03 mmol) and DMF (10 mL) was purged with argon. To the mixture was added tetrakis(triphenylphosphine)palladium (0) (262 mg, 0.23 mmol). The reaction vessel was sealed and the mixture was heated at 110° C. for 2 h. The mixture was allowed to cool to rt. The mixture was partitioned between water and DCM and the organic layer was separated. The aqueous layer was extracted with additional DCM. The combined organic layers were washed with water then brine, dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by silica gel flash chromatography eluting with 100% DCM to 15% MeOH in DCM to afford (1R,2R)-2-((6-((6-(1-ethoxyvinyl)-3H-imidazo[4,5-b]pyridin-3-yl)methyl)benzo[d]thiazol-2-yl)amino)cyclohexanol (320 mg, 47%) as a solid. LCMS (ESI) m/z 450 (M+H)+.

Aufarbeitung

  1. customwas purged with argon
  2. customThe reaction vessel was sealed
  3. temperatureto cool to rt
  4. customThe mixture was partitioned between water and DCM
  5. customthe organic layer was separated
  6. extractionThe aqueous layer was extracted with additional DCM
  7. washThe combined organic layers were washed with water
  8. dry with materialbrine, dried over magnesium sulfate
  9. filtrationfiltered
  10. concentrationconcentrated under reduced pressure
  11. customThe residue was purified by silica gel flash chromatography
  12. washeluting with 100% DCM to 15% MeOH in DCM

Quellen und Nachweise

ORD-Eintrag
ord-e26461f54d8b4222b2b93465633ab7a9
Quelldatensatz
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08952058B2

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