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Potassium Carbonate → HCID 90403329, compound

HRID 1049378
Notes
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Reaction equation

HRID 1049378 reaction equation
Cl[C:2]1[CH:7]=[C:6]([O:8][C:9]2[CH:10]=[CH:11][C:12]([NH:15][C:16]([NH:18][C:19](=[O:25])[C:20]([O:23][CH3:24])([CH3:22])[CH3:21])=[O:17])=[N:13][CH:14]=2)[CH:5]=[CH:4][N:3]=1.[CH2:26]([N:28]1[CH:32]=[C:31](B2OC(C)(C)C(C)(C)O2)[CH:30]=[N:29]1)[CH3:27].C([O-])([O-])=O.[K+].[K+]>O1CCOCC1.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:26]([N:28]1[CH:32]=[C:31]([C:2]2[CH:7]=[C:6]([O:8][C:9]3[CH:10]=[CH:11][C:12]([NH:15][C:16]([NH:18][C:19](=[O:25])[C:20]([O:23][CH3:24])([CH3:22])[CH3:21])=[O:17])=[N:13][CH:14]=3)[CH:5]=[CH:4][N:3]=2)[CH:30]=[N:29]1)[CH3:27]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 3

HCID 11430Potassium CarbonateHCID 113790451-Ethyl-1H-pyrazole-4-boronic acid, pinacol esterHCID 90403342HCID 90403342, compound

Product 1

HCID 90403329HCID 90403329, compoundYield 28.6%

Reagents, catalysts & solvents 3

HCID 178418397
HCID 178418397, compound
Catalyst
HCID 962WaterSolvent
HCID 312751,4-DioxaneSolvent

Conditions

Temperature
90 °C

Procedure

A mixture of Example C5 (0.12 g, 0.33 mmol), 1-ethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (80 mg, 0.36 mmol) and K2CO3 (0.14 g, 0.99 mmol) in dioxane (4 mL) and H2O (1 mL) was sparged with Ar, treated with Pd(PPh3)4 (0.040 g, 0.034 mmol), sparged again with Ar and heated at 90° C. overnight. The mixture was cooled to RT, treated with satd. NaHCO3, extracted with EtOAc (3×) and the combined organics were dried over Na2SO4, concentrated to dryness and purified via silica gel chromatography (MeOH/DCM) to obtain N-((5-((2-(1-ethyl-1H-pyrazol-4-yl)pyridin-4-yl)oxy)pyridin-2-yl)carbamoyl)-2-methoxy-2-methylpropanamide (40 mg, 28%). 1H NMR (400 MHz, DMSO-d6): δ 10.82 (s, 1H), 10.20 (br s, 1H), 8.38 (d, J=5.7 Hz, 1H), 8.31 (s, 1H), 8.27 (d, J=2.9 Hz, 1H), 8.02 (br s, 1H), 7.98 (s, 1H), 7.75 (dd, J=9.0, 2.9 Hz, 1H), 7.24 (d, J=2.4 Hz, 1H), 6.71 (dd, J=5.7, 2.4 Hz, 1H), 4.14 (q, J=7.3 Hz, 2H), 3.21 (s, 3H), 1.37 (t, J=7.3 Hz, 3H), 1.36 (s, 6H); MS (ESI) m/z: 425.2 (M+H+).

Workup

  1. customsparged again with Ar
  2. temperatureThe mixture was cooled to RT
  3. additiontreated with satd
  4. extractionNaHCO3, extracted with EtOAc (3×)
  5. dry with materialthe combined organics were dried over Na2SO4
  6. concentrationconcentrated to dryness
  7. custompurified via silica gel chromatography (MeOH/DCM)

Sources & evidence

ORD record
ord-240dfa3efe11440c91313045c59f03f4
Source dataset
uspto-grants-2016_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09382228B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes