Methanol → N-(3,5-bis-trifluoromethyl-benzyl)-N-methyl-6-piperazin-1-yl-4-o-tolyl-nicotinamide

HRID 379395

Reaktionsgleichung

Reaktionsgleichung von HRID 379395
C(OC([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[CH:19]=[C:18]([C:20]3[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=3[CH3:26])[C:17]([C:27](=[O:45])[N:28]([CH2:30][C:31]3[CH:36]=[C:35]([C:37]([F:40])([F:39])[F:38])[CH:34]=[C:33]([C:41]([F:44])([F:43])[F:42])[CH:32]=3)[CH3:29])=[CH:16][N:15]=2)[CH2:10][CH2:9]1)=O)(C)(C)C.CO.[OH-].[Na+]>C(OCC)(=O)C>[F:43][C:41]([F:42])([F:44])[C:33]1[CH:32]=[C:31]([CH:36]=[C:35]([C:37]([F:39])([F:40])[F:38])[CH:34]=1)[CH2:30][N:28]([CH3:29])[C:27](=[O:45])[C:17]1[C:18]([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=2[CH3:26])=[CH:19][C:14]([N:11]2[CH2:10][CH2:9][NH:8][CH2:13][CH2:12]2)=[N:15][CH:16]=1

Komponenten

5

Edukt 3

HCID 887MethanolHCID 14798Sodium HydroxideHCID 98523194-{5-[(3,5-Bis-trifluoromethyl-benzyl)-methyl-carbamoyl]-4-o-tolyl-pyridin-2-yl}-piperazine-1-carboxylic acid tert-butyl ester

Produkt 1

HCID 10280286N-(3,5-bis-trifluoromethyl-benzyl)-N-methyl-6-piperazin-1-yl-4-o-tolyl-nicotinamideAusbeute 87,4 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8857Ethyl AcetateLösungsmittel2×

Versuchsvorschrift

To a solution of 6.60 g (104 mmol) 4-{5-[(3,5-bis-trifluoromethyl-benzyl)-methyl-carbamoyl]-4-o-tolyl-pyridin-2-yl}-piperazine-1-carboxylic acid tert-butyl ester (Example 43) and 8.40 ml (207 mmol) methanol in 50 ml ethyl acetate 14.7 ml (207 mmol) acetyl chloride were added dropwise at 0° C. After 4 h the reaction mixture was diluted with ethyl acetate and treated with 1 N sodium hydroxide solution. The layers were separated and the aqueous layer extracted with dichloromethane. The combined organic layers were dried with sodium sulfate and concentrated to give 5.36 g of crude product. Flash column chromatography afforded 4.86 g (87.4%) of the title compound as a light brown solid.

Aufarbeitung

  1. customThe layers were separated
  2. extractionthe aqueous layer extracted with dichloromethane
  3. dry with materialThe combined organic layers were dried with sodium sulfate
  4. concentrationconcentrated
  5. customto give 5.36 g of crude product

Quellen und Nachweise

ORD-Eintrag
ord-4d0f11e4af2c44a29779c541daeb0e62
Quelldatensatz
uspto-grants-2001_10
Patentnummer
US06297375B1

Verknüpfte Notizen

Wird geladen…