4-(Pyrrolidin-1-ylmethyl)piperidine-1-carboxylic acid [6-(2-fluoro-4-nitrophenoxy)pyrimidin-4-yl]amide → 4-(Pyrrolidin-1-ylmethyl)piperidine-1-carboxylic acid [6-(4-amino-2-fluorophenoxy)pyrimidin-4-yl]amide

HRID 492932Notes

Reaction equation

HRID 492932 reaction equation
[F:1][C:2]1[CH:29]=[C:28]([N+:30]([O-])=O)[CH:27]=[CH:26][C:3]=1[O:4][C:5]1[N:10]=[CH:9][N:8]=[C:7]([NH:11][C:12]([N:14]2[CH2:19][CH2:18][CH:17]([CH2:20][N:21]3[CH2:25][CH2:24][CH2:23][CH2:22]3)[CH2:16][CH2:15]2)=[O:13])[CH:6]=1>O1CCCC1.CO.[C].[Pd]>[NH2:30][C:28]1[CH:27]=[CH:26][C:3]([O:4][C:5]2[N:10]=[CH:9][N:8]=[C:7]([NH:11][C:12]([N:14]3[CH2:19][CH2:18][CH:17]([CH2:20][N:21]4[CH2:25][CH2:24][CH2:23][CH2:22]4)[CH2:16][CH2:15]3)=[O:13])[CH:6]=2)=[C:2]([F:1])[CH:29]=1

Participants

5

Reactant 1

HCID 866021714-(Pyrrolidin-1-ylmethyl)piperidine-1-carboxylic acid [6-(2-fluoro-4-nitrophenoxy)pyrimidin-4-yl]amide

Product 1

HCID 866021724-(Pyrrolidin-1-ylmethyl)piperidine-1-carboxylic acid [6-(4-amino-2-fluorophenoxy)pyrimidin-4-yl]amideYield 61.7%

Reagents, catalysts & solvents 3

HCID 178418390HCID 178418390, compoundCatalystHCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

4-(Pyrrolidin-1-ylmethyl)piperidine-1-carboxylic acid [6-(2-fluoro-4-nitrophenoxy)pyrimidin-4-yl]amide (350 mg) was dissolved in tetrahydrofuran (8 ml) and methanol (8 ml), and then 10% palladium carbon (162 mg) was added, followed by stirring under a hydrogen atmosphere for 6 hrs. The reaction mixture was filtered to remove the catalyst. The filtrate was concentrated under reduced pressure to give a residue, which was purified by silica gel column chromatography (eluent; ethyl acetate:methanol=9:1). Fractions containing the target compound were concentrated to provide a crude product of 4-(pyrrolidin-1-ylmethyl)piperidine-1-carboxylic acid [6-(4-amino-2-fluorophenoxy)pyrimidin-4-yl]amide (201.4 mg) as pale yellow foam.

Workup

  1. filtrationThe reaction mixture was filtered
  2. customto remove the catalyst
  3. concentrationThe filtrate was concentrated under reduced pressure
  4. customto give a residue, which
  5. customwas purified by silica gel column chromatography (eluent; ethyl acetate:methanol=9:1)
  6. additionFractions containing the target compound
  7. concentrationwere concentrated

Sources & evidence

ORD record
ord-bbf66dfea98743ad850f32dc54357da3
Source dataset
uspto-grants-2009_05
Patent number
US07531532B2

Reaction notes

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