Cesium carbonate → methyl 4-((4,4,4-trifluoro-1-(2-methyl-4-(4,5,6,7-tetrahydro-2H-indazol-2-yl)phenyl)butyl)amino)benzoate

HRID 1520281Notes

Reaction equation

HRID 1520281 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([CH:8]([NH:15][C:16]2[CH:25]=[CH:24][C:19]([C:20]([O:22][CH3:23])=[O:21])=[CH:18][CH:17]=2)[CH2:9][CH2:10][C:11]([F:14])([F:13])[F:12])=[C:4]([CH3:26])[CH:3]=1.[NH:27]1[C:35]2[CH2:34][CH2:33][CH2:32][CH2:31][C:30]=2[CH:29]=[N:28]1.CN[C@@H]1CCCC[C@H]1NC.C(=O)([O-])[O-].[Cs+].[Cs+]>[Cu]I.O.C1(C)C=CC=CC=1>[F:12][C:11]([F:14])([F:13])[CH2:10][CH2:9][CH:8]([NH:15][C:16]1[CH:25]=[CH:24][C:19]([C:20]([O:22][CH3:23])=[O:21])=[CH:18][CH:17]=1)[C:5]1[CH:6]=[CH:7][C:2]([N:28]2[CH:29]=[C:30]3[C:35]([CH2:34][CH2:33][CH2:32][CH2:31]3)=[N:27]2)=[CH:3][C:4]=1[CH3:26]

Participants

8

Reactant 4

HCID 10796Cesium carbonateHCID 753174,5,6,7-tetrahydro-1H-indazoleHCID 2733821trans-N,N'-dimethyl-1,2-cyclohexanediamineHCID 117840148Methyl 4-((1-(4-bromo-2-methylphenyl)-4,4,4-trifluorobutyl)amino)benzoate

Product 1

HCID 117840555methyl 4-((4,4,4-trifluoro-1-(2-methyl-4-(4,5,6,7-tetrahydro-2H-indazol-2-yl)phenyl)butyl)amino)benzoate

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 962WaterSolventHCID 1140TolueneSolvent

Conditions

Temperature
110 °C

Procedure

Under a nitrogen atmosphere, a mixture of methyl 4-((1-(4-bromo-2-methylphenyl)-4,4,4-trifluorobutyl)amino)benzoate (optically active form, compound with longer retention time) (3.0 g), 4,5,6,7-tetrahydroindazole (1.278 g), copper(I) iodide (1.594 g), trans-N,N′-dimethylcyclohexane-1,2-diamine (2.64 mL), cesium carbonate (6.82 g) and toluene (17.4 mL) was stirred at 110° C. for 18 hr. To the reaction mixture was added water at room temperature, and the insoluble material was filtered off through celite. The filtrate was extracted with ethyl acetate, and the extract was washed with water and saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure and the residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (2.11 g).

Workup

  1. filtrationthe insoluble material was filtered off through celite
  2. extractionThe filtrate was extracted with ethyl acetate
  3. washthe extract was washed with water and saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customThe solvent was evaporated under reduced pressure
  6. customthe residue was purified by silica gel column chromatography (ethyl acetate/hexane)

Sources & evidence

ORD record
ord-079aeec6728345b9a5a2363b7216c68a
Source dataset
uspto-grants-2015_07
Patent number
US09073864B2

Reaction notes

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