Cesium carbonate → (S)-2-(1-((6-Amino-5-(5-(difluoromethoxy)pyridin-3-yl)pyrimidin-4-yl)amino)ethyl)-5-methyl-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3H)-one

HRID 1052763Notes

Reaction equation

HRID 1052763 reaction equation
[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]([NH:8][C@H:9]([C:11]2[N:16]([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)[C:15](=[O:23])[C:14]3=[C:24]([CH3:27])[CH:25]=[CH:26][N:13]3[N:12]=2)[CH3:10])[C:3]=1Br.[F:29][CH:30]([F:41])[O:31][C:32]1[CH:33]=[C:34](B(O)O)[CH:35]=[N:36][CH:37]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>O1CCOCC1.C(OCC)(=O)C>[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]([NH:8][C@H:9]([C:11]2[N:16]([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)[C:15](=[O:23])[C:14]3=[C:24]([CH3:27])[CH:25]=[CH:26][N:13]3[N:12]=2)[CH3:10])[C:3]=1[C:34]1[CH:35]=[N:36][CH:37]=[C:32]([O:31][CH:30]([F:41])[F:29])[CH:33]=1

Participants

6

Reactant 3

HCID 10796Cesium carbonateHCID 64204670HCID 64204670, compoundHCID 118433733HCID 118433733, compound

Product 1

HCID 118433829(S)-2-(1-((6-Amino-5-(5-(difluoromethoxy)pyridin-3-yl)pyrimidin-4-yl)amino)ethyl)-5-methyl-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3H)-oneYield 81.6%

Reagents, catalysts & solvents 2

HCID 8857Ethyl AcetateSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
100 °C

Procedure

To a solution of (S)-2-(1-((6-amino-5-bromopyrimidin-4-yl)amino)ethyl)-5-methyl-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3H)-one (75 mg, 0.17 mmol) were added 48 mg (0.26 mmol) of (5-(difluoromethoxy)pyridin-3-yl)boronic acid, 13 mg (0.02 mmol) of 1,1′-bis(diphenylphosphino)ferrocene-palladium(II)dichloride dichloromethane complex and 170 μl of a 2M aqueous solution of cesium carbonate in dioxane. The mixture was stirred under argon atmosphere at 100° C. for 18 hours and then diluted with ethyl acetate. The resulting solution was washed with water and brine, dried over magnesium sulphate, filtered and the solvents were removed under reduced pressure. The product was purified by flash chromatography (0% to 100% hexane/AcOEt, 0-8% AcOEt/MeOH) to give 70 mg (81% yield) of the title compound as a white solid.

Workup

  1. washThe resulting solution was washed with water and brine
  2. dry with materialdried over magnesium sulphate
  3. filtrationfiltered
  4. customthe solvents were removed under reduced pressure
  5. customThe product was purified by flash chromatography (0% to 100% hexane/AcOEt, 0-8% AcOEt/MeOH)

Sources & evidence

ORD record
ord-31fe61bede564ccf974f93186a582e5a
Source dataset
uspto-grants-2016_07
Patent number
US09388189B2

Reaction notes

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