Methylamine → HCID 67254021, compound

HRID 1711629Notes

Reaction equation

HRID 1711629 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]([CH:15]=[CH:16][C:17]=1[F:18])[O:5][C:6]1[CH:7]=[CH:8][C:9]([C:12]([OH:14])=O)=[N:10][CH:11]=1.CN.C1COCC1.C1C=CC2N(O)N=[N:32][C:30]=2C=1.Cl.C(N=C=NCCCN(C)C)C>CN(C=O)C.C(OCC)(=O)C>[NH2:1][C:2]1[CH:3]=[C:4]([CH:15]=[CH:16][C:17]=1[F:18])[O:5][C:6]1[CH:7]=[CH:8][C:9]([C:12]([NH:32][CH3:30])=[O:14])=[N:10][CH:11]=1

Participants

8

Reactant 5

HCID 6329MethylamineHCID 8028TetrahydrofuranHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride2×HCID 67253698HCID 67253698, compound

Product 1

HCID 67254021HCID 67254021, compoundYield 101%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

In DMF (5 mL) was placed 5-(3-amino-4-fluorophenoxy)picolinic acid from Example A12 (500 mg, 2.01 mmol), 2.0 M methylamine solution/THF (10 mL, 20.1 mmol) and HOBt (324 mg, 2.12 mmol). To this was added N1-((ethylimino)methylene)-N3,N3-dimethylpropane-1,3-diamine hydrochloride (772 mg, 4.03 mmol) and the solution stirred overnight at RT. The solution was treated with an additional equiv of N1-((ethylimino)methylene)-N3,N3-dimethylpropane-1,3-diamine hydrochloride (775 mg) and warmed to 40° C., then cooled to RT and stirred overnight. The solution was diluted with ethyl acetate (30 mL) and washed with water (30 mL), brine (30 mL), dried (Na2SO4) and concentrated in vacuo to yield 5-(3-amino-4-fluorophenoxy)-N-methylpicolinamide (530 mg, 101% yield) as a thick oil, which was used without further purification. MS (ESI) m/z: 262.0 (M+H+).

Workup

  1. temperaturewarmed to 40° C.
  2. temperaturecooled to RT
  3. stirringstirred overnight
  4. washwashed with water (30 mL), brine (30 mL)
  5. dry with materialdried (Na2SO4)
  6. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-36ba949b609a4307a212554f15f269e6
Source dataset
uspto-grants-2010_09
Patent number
US07790756B2

Reaction notes

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