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Potassium Carbonate → 4-[6-(4-Fluoro-phenyl)-2-(2-(R)-methyl-pyrrolidin-1-yl)-pyrimidin-4-yl]-3-(R)-methyl-piperazine-1-carboxylic acid tert-butyl ester

HRID 1444125
Notes
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Reaction equation

HRID 1444125 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[CH:19]=[C:18]([C:20]3[CH:25]=[CH:24][C:23]([F:26])=[CH:22][CH:21]=3)[N:17]=[C:16](Cl)[N:15]=2)[C@H:10]([CH3:28])[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Br.[CH3:30][C@@H:31]1[CH2:35][CH2:34][CH2:33][NH:32]1.C([O-])([O-])=O.[K+].[K+]>CC(N(C)C)=O.O>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[CH:19]=[C:18]([C:20]3[CH:25]=[CH:24][C:23]([F:26])=[CH:22][CH:21]=3)[N:17]=[C:16]([N:32]3[CH2:33][CH2:34][CH2:35][C@H:31]3[CH3:30])[N:15]=2)[C@H:10]([CH3:28])[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 12444175(2R)-2-methylpyrrolidine hydrobromideHCID 591683334-[2-Chloro-6-(4-fluoro-phenyl)-pyrimidin-4-yl]-3-(R)-methyl-piperazine-1-carboxylic acid tert-butyl ester

Product 1

HCID 591682964-[6-(4-Fluoro-phenyl)-2-(2-(R)-methyl-pyrrolidin-1-yl)-pyrimidin-4-yl]-3-(R)-methyl-piperazine-1-carboxylic acid tert-butyl ester

Reagents, catalysts & solvents 2

HCID 962
Water
Solvent
HCID 31374DimethylacetamideSolvent

Procedure

Heat a mixture of 4-[2-chloro-6-(4-fluoro-phenyl)-pyrimidin-4-yl]-3-(R)-methyl-piperazine-1-carboxylic acid tert-butyl ester (5.0 g, 12.3 mmol), 2-(R)-methyl-pyrrolidine hydrobromide (Nijhuis et. al. (1989) J. Org. Chem. 54:216-220) (3.0 g, 16.0 mmol), and K2CO3 (5.2 g, 37.8 mmol) in DMA at 120° C. for 16 h. Dilute with water, extract with EtOAc, and wash with brine. Dry the organic layer (Na2SO4) and concentrate under reduced pressure. Purify the residue by flash column eluting with EtOAc-Hexanes (1:4) to afford the title compound as a white solid.

Workup

  1. temperatureHeat
  2. extractionextract with EtOAc
  3. washwash with brine
  4. dry with materialDry the organic layer (Na2SO4)
  5. concentrationconcentrate under reduced pressure
  6. customPurify the residue by flash column
  7. washeluting with EtOAc-Hexanes (1:4)

Sources & evidence

ORD record
ord-6b11514f46e64fc58dd9aaa59b7c2af0
Source dataset
uspto-grants-2010_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07662830B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes