Dimethylformamide → tert-Butyl 4-(((4-(4-amino-3-fluorophenoxy)-6-cyano-7-quinolyl)oxy)methyl)-1-piperidinecarboxylate

HRID 1010435Notes

Reaction equation

HRID 1010435 reaction equation
[NH2:1][C:2]1[CH:21]=[CH:20][C:5]([O:6][C:7]2[C:16]3[C:11](=[CH:12][C:13]([OH:19])=[C:14]([C:17]#[N:18])[CH:15]=3)[N:10]=[CH:9][CH:8]=2)=[CH:4][C:3]=1[F:22].Br[CH2:24][CH:25]1[CH2:30][CH2:29][N:28]([C:31]([O:33][C:34]([CH3:37])([CH3:36])[CH3:35])=[O:32])[CH2:27][CH2:26]1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>C(OCC)(=O)C.CCCCCC.O>[NH2:1][C:2]1[CH:21]=[CH:20][C:5]([O:6][C:7]2[C:16]3[C:11](=[CH:12][C:13]([O:19][CH2:24][CH:25]4[CH2:30][CH2:29][N:28]([C:31]([O:33][C:34]([CH3:35])([CH3:37])[CH3:36])=[O:32])[CH2:27][CH2:26]4)=[C:14]([C:17]#[N:18])[CH:15]=3)[N:10]=[CH:9][CH:8]=2)=[CH:4][C:3]=1[F:22]

Participants

8

Reactant 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 15512811tert-Butyl 4-(bromomethyl)piperidine-1-carboxylateHCID 1358293794-(4-Amino-3-fluorophenoxy)-6-cyano-7-hydroxyquinoline

Product 1

HCID 22936777tert-Butyl 4-(((4-(4-amino-3-fluorophenoxy)-6-cyano-7-quinolyl)oxy)methyl)-1-piperidinecarboxylateYield 50.7%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 8058HexaneSolventHCID 8857Ethyl AcetateSolvent3×

Procedure

4-(4-Amino-3-fluorophenoxy)-7-hydroxy-6-quinoline carbonitrile (500 mg), tert-butyl 4-(bromomethyl)-1-piperidinecarboxylate (550 mg), potassium carbonate (700 mg) and dimethylformamide (5 ml) were stirred together at 60° c. for 2 hours. Water and ethyl acetate were added for extraction, and the extract was dried over magnesium sulfate. The drying agent was filtered out, and silica gel was added to the filtrate which was then distilled off under reduced pressure for adsorption. The reaction solution-adsorbed silica gel was subjected to column chromatography (hexane:ethyl acetate=1:1, followed by 1:2, 1:3, ethyl acetate) in a dry column packed with silica gel, to obtain 423 mg of a brown oil.

Workup

  1. dry with materialthe extract was dried over magnesium sulfate
  2. filtrationThe drying agent was filtered out
  3. additionsilica gel was added to the filtrate which
  4. distillationwas then distilled off under reduced pressure for adsorption
  5. customThe reaction solution-adsorbed silica gel

Sources & evidence

ORD record
ord-16e1e708bd0c49e6b796c05fc59428b0
Source dataset
uspto-grants-2011_07
Patent number
US07973160B2

Reaction notes

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