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1-Bromo-2,4-difluorobenzene → (2S,4S)-1-Boc-4-[(2,4-difluorophenyl)amino]-2-[(4-methylpiperazin-1-yl)carbonyl]pyrrolidine

HRID 884048
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 884048
[C:1]([N:8]1[CH2:12][C@@H:11]([NH2:13])[CH2:10][C@H:9]1[C:14]([N:16]1[CH2:21][CH2:20][N:19]([CH3:22])[CH2:18][CH2:17]1)=[O:15])([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2].CC(C)([O-])C.[Na+].C(P(C(C)(C)C)C1C=CC=CC=1C1C=CC=CC=1)(C)(C)C.Br[C:51]1[CH:56]=[CH:55][C:54]([F:57])=[CH:53][C:52]=1[F:58]>C1(C)C=CC=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.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[C:1]([N:8]1[CH2:12][C@@H:11]([NH:13][C:51]2[CH:56]=[CH:55][C:54]([F:57])=[CH:53][C:52]=2[F:58])[CH2:10][C@H:9]1[C:14]([N:16]1[CH2:17][CH2:18][N:19]([CH3:22])[CH2:20][CH2:21]1)=[O:15])([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2]
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Komponenten

7

Edukt 4

HCID 676741-Bromo-2,4-difluorobenzeneHCID 27342152-(Di-tert-butylphosphino)biphenylHCID 23676156Sodium t-butoxideHCID 67358152(2S,4S)-1-Boc-4-amino-2-[(4-methylpiperazin-1-yl)carbonyl]pyrrolidine

Produkt 1

HCID 67358440(2S,4S)-1-Boc-4-[(2,4-difluorophenyl)amino]-2-[(4-methylpiperazin-1-yl)carbonyl]pyrrolidine
Ausbeute 78 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 9811564Bis(dibenzylideneacetone)palladiumKatalysatorHCID 1140TolueneLösungsmittel

Reaktionsbedingungen

Temperatur
110 °C

Versuchsvorschrift

(2S,4S)-1-Boc-4-amino-2-[(4-methylpiperazin-1-yl)carbonyl]pyrrolidine (10.61 g, 33.96 mmol) obtained in Step C was dissolved in toluene (100 mL). Sodium t-butoxide (3.73 g, 38.81 mmol), 2-(di-t-butylphosphino)biphenyl (863 mg, 2.89 mmol), Tris(dibenzylideneacetone)-dipalladium(0) (1.73 g, 1.93 mmol) and 1-bromo-2,4-difluorobenzene (7.48 g, 38.81 mmol) were added thereto and the reaction solution was stirred for 10 hours at 110° C. After the reaction was completed, solid like material was filtered using the Cellite from the reaction solution. The reaction solution was diluted with EtOAc and washed with water. The extracted organic solution was dried over MgSO4, concentrated in vacuo and purified by column chromatography (eluent: MC:MeOH=10/1) to give the title compound (11.24 g, 78%).

Aufarbeitung

  1. filtrationsolid like material was filtered
  2. additionThe reaction solution was diluted with EtOAc
  3. washwashed with water
  4. dry with materialThe extracted organic solution was dried over MgSO4
  5. concentrationconcentrated in vacuo
  6. custompurified by column chromatography (eluent: MC:MeOH=10/1)

Quellen und Nachweise

ORD-Eintrag
ord-7b7825e40a394e2585b3c58d3268693d
Quelldatensatz
uspto-grants-2012_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08236955B2

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