Methyl Isocyanate → 6-[2-(3-Methyl-ureido)-pyrimidin-4-yloxy]-naphthalene-1-carboxylic acid (4-fluoro-3-trifluoromethyl-phenyl)-amide

HRID 1094506Notes

Reaction equation

HRID 1094506 reaction equation
[CH3:1][N:2]=[C:3]=[O:4].[F:5][C:6]1[CH:11]=[CH:10][C:9]([NH:12][C:13]([C:15]2[C:24]3[C:19](=[CH:20][C:21]([O:25][C:26]4[CH:31]=[CH:30][N:29]=[C:28]([NH2:32])[N:27]=4)=[CH:22][CH:23]=3)[CH:18]=[CH:17][CH:16]=2)=[O:14])=[CH:8][C:7]=1[C:33]([F:36])([F:35])[F:34]>C1COCC1.CCOC(C)=O.O>[F:5][C:6]1[CH:11]=[CH:10][C:9]([NH:12][C:13]([C:15]2[C:24]3[C:19](=[CH:20][C:21]([O:25][C:26]4[CH:31]=[CH:30][N:29]=[C:28]([NH:32][C:3]([NH:2][CH3:1])=[O:4])[N:27]=4)=[CH:22][CH:23]=3)[CH:18]=[CH:17][CH:16]=2)=[O:14])=[CH:8][C:7]=1[C:33]([F:34])([F:36])[F:35]

Participants

6

Reactant 2

HCID 12228Methyl Isocyanate2×HCID 160715501-Naphthalenecarboxamide, 6-[(2-amino-4-pyrimidinyl)oxy]-N-[4-fluoro-3-(trifluoromethyl)phenyl]-

Product 1

HCID 236528656-[2-(3-Methyl-ureido)-pyrimidin-4-yloxy]-naphthalene-1-carboxylic acid (4-fluoro-3-trifluoromethyl-phenyl)-amide

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

130 μl (2.2 mMol) methyl isocyanate are added to a solution of 300 mg (0.68 mMol) 6-(2-amino-pyrimidin-4-yloxy)-naphthalene-1-carboxylic acid (4-fluoro-3-trifluoromethyl-phenyl)-amide (Step 10.3) in 10 ml THF in a sealed vessel. The mixture is stirred at 100° C. for 11 days (another 1.1 eq. of Me-NCO is added on day 8 and 9). Then the reaction mixture is diluted with EtOAc and water, the aq. phase separated off and extracted twice with EtOAc. The organic layers are washed with water and brine, dried (Na2SO4) and partially concentrated. Precipitation with hexane, filtration and re-crystallization from boiling THF/CH3CN gives the title compound: m.p.: 233-234° C.

Workup

  1. additionis added on day 8 and 9)
  2. customthe aq. phase separated off
  3. extractionextracted twice with EtOAc
  4. washThe organic layers are washed with water and brine
  5. dry with materialdried (Na2SO4)
  6. concentrationpartially concentrated
  7. customPrecipitation
  8. filtrationwith hexane, filtration and re-crystallization

Sources & evidence

ORD record
ord-89a8a37433684e149257d1681d5f4657
Source dataset
uspto-grants-2012_03
Patent number
US08133886B2

Reaction notes

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