Sodium Carbonate → 1-(6-(3,6-Dihydro-2H-pyran-4-yl)pyridin-2-yl)-3-(8-fluoroquinolin-4-yl)urea

HRID 1528094Notes

Reaction equation

HRID 1528094 reaction equation
[F:1][C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:11]=1[N:10]=[CH:9][CH:8]=[C:7]2[NH:12][C:13]([NH:15][C:16]1[CH:21]=[CH:20][CH:19]=[C:18](I)[N:17]=1)=[O:14].[O:23]1[CH2:28][CH:27]=[C:26](B2OC(C)(C)C(C)(C)O2)[CH2:25][CH2:24]1.C(=O)([O-])[O-].[Na+].[Na+]>CN(C=O)C.[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[O:23]1[CH2:24][CH:25]=[C:26]([C:18]2[N:17]=[C:16]([NH:15][C:13]([NH:12][C:7]3[C:6]4[C:11](=[C:2]([F:1])[CH:3]=[CH:4][CH:5]=4)[N:10]=[CH:9][CH:8]=3)=[O:14])[CH:21]=[CH:20][CH:19]=2)[CH2:27][CH2:28]1

Participants

6

Reactant 3

HCID 10340Sodium CarbonateHCID 112180533,6-Dihydro-2H-pyran-4-boronic acid pinacol esterHCID 866674931-(8-Fluoroquinolin-4-yl)-3-(6-iodopyridin-2-yl)urea

Product 1

HCID 575212631-(6-(3,6-Dihydro-2H-pyran-4-yl)pyridin-2-yl)-3-(8-fluoroquinolin-4-yl)ureaYield 23.6%

Reagents, catalysts & solvents 2

HCID 11979704Tetrakis(triphenylphosphine)palladiumCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
80 °C

Procedure

1-(8-Fluoroquinolin-4-yl)-3-(6-iodopyridin-2-yl)urea (250 mg, 0.582 mmol), 2-(3,6-dihydro-2H-pyran-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (187 mg, 0.873 mmol), sodium carbonate solution (2M, 1.31 mL, 2.62 mmol) and tetrakis(triphenylphosphine)-palladium(0) (68 mg, 0.058 mmol) were dissolved in 5 ml of DMF under an argon atmosphere and the mixture was stirred at 80° C., in a microwave oven, for one hour. After the solvent had been evaporated down to dryness, the resulting residue was treated with water and the mixture was then extracted with ethyl acetate. After the combined organic phases had been dried over sodium sulfate and the solvent had been filtered and evaporated down to dryness, the resulting residue was purified by column chromatography to give the title product (50 mg, 19%).

Workup

  1. customAfter the solvent had been evaporated down to dryness
  2. additionthe resulting residue was treated with water
  3. extractionthe mixture was then extracted with ethyl acetate
  4. dry with materialAfter the combined organic phases had been dried over sodium sulfate
  5. filtrationthe solvent had been filtered
  6. customevaporated down to dryness
  7. customthe resulting residue was purified by column chromatography

Sources & evidence

ORD record
ord-54f77c36cfe74601865aace10a9570f1
Source dataset
uspto-grants-2015_07
Patent number
US09090592B2

Reaction notes

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