Water → HCID 68323825, compound

HRID 573664Notes

Reaction equation

HRID 573664 reaction equation
Br[C:2]1[S:22][C:5]2=[N:6][C:7]([CH3:21])=[CH:8][C:9]([NH:10][S:11]([C:14]3[CH:19]=[CH:18][CH:17]=[C:16]([Cl:20])[CH:15]=3)(=[O:13])=[O:12])=[C:4]2[C:3]=1[C:23]1[CH:28]=[CH:27][CH:26]=[C:25]([O:29][CH3:30])[CH:24]=1.[CH3:31][C:32]1[C:36](B2OC(C)(C)C(C)(C)O2)=[C:35]([CH3:46])[NH:34][N:33]=1.C(=O)([O-])[O-].[K+].[K+].O>O1CCOCC1.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[Cl:20][C:16]1[CH:15]=[C:14]([S:11]([NH:10][C:9]2[CH:8]=[C:7]([CH3:21])[N:6]=[C:5]3[S:22][C:2]([C:36]4[C:32]([CH3:31])=[N:33][NH:34][C:35]=4[CH3:46])=[C:3]([C:23]4[CH:28]=[CH:27][CH:26]=[C:25]([O:29][CH3:30])[CH:24]=4)[C:4]=23)(=[O:13])=[O:12])[CH:19]=[CH:18][CH:17]=1

Participants

7

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 162177133,5-Dimethylpyrazole-4-boronic acid, pinacol esterHCID 53250396N-{2-Bromo-6-methyl-3-[3-(methyloxy)phenyl]thieno[2,3-b]pyridin-4-yl}-3-chlorobenzenesulfonamide

Product 1

HCID 68323825HCID 68323825, compoundYield 25%

Reagents, catalysts & solvents 2

HCID 178418476HCID 178418476, compoundCatalyst2×HCID 312751,4-DioxaneSolvent

Conditions

Temperature
100 °C

Procedure

To a solution of N-{2-bromo-6-methyl-3-[3-(methyloxy)phenyl]thieno[2,3-b]pyridin-4-yl}-3-chlorobenzenesulfonamide (Example 33) (140 mg, 0.267 mmol) in 1,4-dioxane (2 mL) was added 3,5-dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (89 mg, 0.401 mmol), bis(triphenylphosphine)palladium(II) chloride (18.76 mg, 0.027 mmol) and potassium carbonate (111 mg, 0.802 mmol). Water (1 mL) was added and the mixture heated at 100° C. in a microwave for 15 min (×2). Another portion of bis(triphenylphosphine)palladium(II) chloride (18.76 mg, 0.027 mmol) was then added and the reaction mixture degassed with nitrogen for 5 min and then heated at 100° C. in a microwave for 15 min (×2). The solvent was then removed in vacuo and the residue dissolved in ethyl acetate (20 mL) and washed with water (20 mL). The aqueous phase was re-extracted with ethyl acetate (20 mL×2). All organic phases were combined, dried over MgSO4, filtered and concentrated. The residue was purified on silica, eluting with a gradient of 0-80% ethyl acetate in cyclohexane and then further purified using MDAP (acidic conditions), to give the title compound (36 mg). LCMS (A) m/z: 539 [M+1]+, Rt 1.47 min (acidic).

Workup

  1. customthe reaction mixture degassed with nitrogen for 5 min
  2. temperatureheated at 100° C. in a microwave for 15 min (×2)
  3. customThe solvent was then removed in vacuo
  4. dissolutionthe residue dissolved in ethyl acetate (20 mL)
  5. washwashed with water (20 mL)
  6. extractionThe aqueous phase was re-extracted with ethyl acetate (20 mL×2)
  7. dry with materialdried over MgSO4
  8. filtrationfiltered
  9. concentrationconcentrated
  10. customThe residue was purified on silica
  11. washeluting with a gradient of 0-80% ethyl acetate in cyclohexane
  12. customfurther purified

Sources & evidence

ORD record
ord-55ff4364dd8d42759dbd60b58248d55a
Source dataset
uspto-grants-2015_05
Patent number
US09029545B2

Reaction notes

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