Sodium Carbonate → 2-Amino-5-(4-fluoro-3-pyrimidin-5-ylphenyl)-5-[3-fluoro-4-(trifluoromethoxy)phenyl]-3-methyl-3,5-dihydro-imidazol-4-one

HRID 643478Notes

Reaction equation

HRID 643478 reaction equation
C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[NH2:20][C:21]1[N:25]([CH3:26])[C:24](=[O:27])[C:23]([C:40]2[CH:45]=[CH:44][C:43]([F:46])=[C:42](Br)[CH:41]=2)([C:28]2[CH:33]=[CH:32][C:31]([O:34][C:35]([F:38])([F:37])[F:36])=[C:30]([F:39])[CH:29]=2)[N:22]=1.[N:48]1[CH:53]=[C:52](B(O)O)[CH:51]=[N:50][CH:49]=1.C(=O)([O-])[O-].[Na+].[Na+]>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].O.COCCOC>[NH2:20][C:21]1[N:25]([CH3:26])[C:24](=[O:27])[C:23]([C:40]2[CH:45]=[CH:44][C:43]([F:46])=[C:42]([C:52]3[CH:53]=[N:48][CH:49]=[N:50][CH:51]=3)[CH:41]=2)([C:28]2[CH:33]=[CH:32][C:31]([O:34][C:35]([F:38])([F:37])[F:36])=[C:30]([F:39])[CH:29]=2)[N:22]=1

Participants

8

Reactant 4

HCID 10340Sodium CarbonateHCID 11776TriphenylphosphineHCID 2795193(Pyrimidin-5-yl)boronic acidHCID 575312642-Amino-5-(3-bromo-4-fluorophenyl)-5-[3-fluoro-4-(trifluoromethoxy)phenyl]-3-methyl-3,5-dihydroimidazol-4-one

Product 1

HCID 575313272-Amino-5-(4-fluoro-3-pyrimidin-5-ylphenyl)-5-[3-fluoro-4-(trifluoromethoxy)phenyl]-3-methyl-3,5-dihydro-imidazol-4-oneYield 29%

Reagents, catalysts & solvents 3

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 962WaterSolventHCID 80711,2-DimethoxyethaneSolvent

Procedure

A mixture of ethylene glycol dimethyl ether, tris(dibenzylideneacetone)-dipalladium(0) (0.015 g, 16.5 μmol) and triphenylphosphine (0.008 g, 32.0 μmol) under nitrogen is stirred for 5 min, treated with 2-amino-5-(3-bromo-4-fluorophenyl)-5-[3-fluoro-4-(trifluoromethoxy)phenyl]-3-methyl-3,5-dihydroimidazol-4-one (0.154 g, 0.33 mmol), 5-pyrimidine boronic acid (0.046 g, 0.37 mmol), sodium carbonate (0.105 g, 0.99 mmol) and water, heated at reflux temperature for 1.25 h, cooled to room temperature and concentrated in vacuo. The resultant residue is purified by flash chromatography (silica, 95:5:0.5 methylene chloride/methanol/concentrated ammonium hydroxide as eluent) to afford a viscous oil. This oil is suspended in a mixture of methylene chloride/hexanes and concentrated to afford the title compound as an off-white solid, 0.045 g (29% yield), mp 102-110° C., identified by HNMR and mass spectral analyses. 1H NMR (500 MHz, CD3OD) δ 9.15 (s, 1H), 8.95 (s, 2H), 7.62-7.56 (m, 2H), 7.39-7.27 (m, 4H), 3.12 (s, 3H); IR 3353, 3061, 2956, 1732, 1668, 1498, 1470, 1416, 1251, 1216, 1170 cm−1; ESI MS m/z 464 [C21H14F5N5O2+H]+; HPLC (Method 2) 95.0% (AUC) tR=13.78 min.

Workup

  1. temperatureheated
  2. temperatureat reflux temperature for 1.25 h
  3. concentrationconcentrated in vacuo
  4. customThe resultant residue is purified by flash chromatography (silica, 95:5:0.5 methylene chloride/methanol/concentrated ammonium hydroxide as eluent)
  5. customto afford a viscous oil
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-d1ff1d8d088e480eb1f191129379c76a
Source dataset
uspto-grants-2010_04
Patent number
US07700602B2

Reaction notes

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