Water → HCID 59351310, compound

HRID 887419Notes

Reaction equation

HRID 887419 reaction equation
[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[C:10]([C:12]1[CH:17]=[CH:16][C:15]([O:18][C:19]2[C:24](Cl)=[N:23][CH:22]=[CH:21][N:20]=2)=[CH:14][CH:13]=1)=[O:11].C([O-])(=O)C.[K+].[CH3:31][O:32][CH:33]1[CH2:38][CH2:37][C:36](B2OC(C)(C)C(C)(C)O2)=[CH:35][CH2:34]1.O>CC#N>[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[C:10]([C:12]1[CH:17]=[CH:16][C:15]([O:18][C:19]2[C:24]([C:36]3[CH2:37][CH2:38][CH:33]([O:32][CH3:31])[CH2:34][CH:35]=3)=[N:23][CH:22]=[CH:21][N:20]=2)=[CH:14][CH:13]=1)=[O:11]

Participants

6

Reactant 4

HCID 962WaterHCID 517044Potassium AcetateHCID 46207940(4-(3-chloropyrazin-2-yloxy)phenyl)(1H-benzo[d]imidazol-2-yl)methanoneHCID 593514324-Methoxycyclohexene-1-boronic Acid Pinacol Ester

Product 1

HCID 59351310HCID 59351310, compound

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Conditions

Temperature
100 °C

Procedure

(1H-Benzo[d]imidazol-2-yl)(4-(3-chloropyrazin-2-yloxy)phenyl)methanone (1.0 g, 2.8 mmol), potassium acetate (2.1 g, 21.0 mmol), 2-(4-methoxy-1-cyclohexen-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (0.88 g, 3.7 mmol), and bis[di-tert-butyl(phenyl) phosphane]dichloropalladium (0.13 g, 0.213 mmol) were taken up in 40 mL of 3:1 MeCN:water. The mixture was purged with nitrogen and heated to 100° C. After 12 hours, the mixture was cooled to room temperature and diluted with 40 mL of water. The mixture was extracted twice with 30 mL of 9:1 chloroform:IPA. The combined organic extracts were dried over MgSO4. Filtration and concentration under reduced pressure, followed by flash chromatography on silica gel (0.5 to 5% MeOH/DCM) afforded 1H-Benzimidazol-2-yl(4-((3-(4-methoxy-1-cyclohexen-1-yl)-2-pyrazinyl)oxy)phenyl)methanone as a yellow solid. MS (ESI, pos. ion) m/z: 427.1 (M+1). IC50 (uM) +++++.

Workup

  1. customThe mixture was purged with nitrogen
  2. temperaturethe mixture was cooled to room temperature
  3. additiondiluted with 40 mL of water
  4. extractionThe mixture was extracted twice with 30 mL of 9:1 chloroform
  5. dry with materialThe combined organic extracts were dried over MgSO4
  6. filtrationFiltration and concentration under reduced pressure

Sources & evidence

ORD record
ord-faf0f2665a6c4ed4b2f56f4cfdb49ee7
Source dataset
uspto-grants-2012_08
Patent number
US08247418B2

Reaction notes

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