Potassium Carbonate → 5-(5-(2-(benzyloxy)-1-fluoroethyl)-6-chloropyridin-2-yl)-2-(4-fluorophenyl)-N-methyl-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamide

HRID 595769Notes

Reaction equation

HRID 595769 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[O:9][C:10]3[CH:20]=[C:19]([N:21]([CH3:26])[S:22]([CH3:25])(=[O:24])=[O:23])[C:18](B4OC(C)(C)C(C)(C)O4)=[CH:17][C:11]=3[C:12]=2[C:13]([NH:15][CH3:16])=[O:14])=[CH:4][CH:3]=1.[CH2:36]([O:43][CH2:44][CH:45]([C:47]1[C:48]([Cl:54])=[N:49][C:50](Br)=[CH:51][CH:52]=1)[F:46])[C:37]1[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1.C([O-])([O-])=O.[K+].[K+]>O1CCOCC1.O.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH2:36]([O:43][CH2:44][CH:45]([C:47]1[CH:52]=[CH:51][C:50]([C:18]2[C:19]([N:21]([CH3:26])[S:22]([CH3:25])(=[O:24])=[O:23])=[CH:20][C:10]3[O:9][C:8]([C:5]4[CH:6]=[CH:7][C:2]([F:1])=[CH:3][CH:4]=4)=[C:12]([C:13]([NH:15][CH3:16])=[O:14])[C:11]=3[CH:17]=2)=[N:49][C:48]=1[Cl:54])[F:46])[C:37]1[CH:38]=[CH:39][CH:40]=[CH:41][CH:42]=1

Participants

7

Reactant 3

HCID 11430Potassium CarbonateHCID 682394022-(4-fluorophenyl)-N-methyl-6-(N-methylmethylsulfonamido)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzofuran-3-carboxamideHCID 903324543-(2-(Benzyloxy)-1-fluoroethyl)-6-bromo-2-chloropyridine

Product 1

HCID 903324655-(5-(2-(benzyloxy)-1-fluoroethyl)-6-chloropyridin-2-yl)-2-(4-fluorophenyl)-N-methyl-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamideYield 72.5%

Reagents, catalysts & solvents 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
85 °C

Procedure

To a degassed solution of 2-(4-fluorophenyl)-N-methyl-6-(N-methylmethylsulfonamido)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzofuran-3-carboxamide (714 mg, 1.422 mmol) and 3-(2-(benzyloxy)-1-fluoroethyl)-6-bromo-2-chloropyridine (490 mg, 1.422 mmol) in 1,4-Dioxane (15 ml) and water (2 mL) was added K2CO3 (393 mg, 2.84 mmol) and Pd(dppf)Cl2 (100 mg, 0.137 mmol) under N2 protection. The resulting mixture was heated to 85° C. and stirred for 6 h. The reaction was cooled, filtered through a pad of celite and washed with ethyl acetate. The combined filtrate was evaporated in vacuo. The resulting residue was purified using column chromatography (eluted with 0-20% ethyl acetate/DCM) to provide 5-(5-(2-(benzyloxy)-1-fluoroethyl)-6-chloropyridin-2-yl)-2-(4-fluorophenyl)-N-methyl-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamide (660 mg, yield: 67%). MS (M+H)+: 641.

Workup

  1. temperatureThe reaction was cooled
  2. filtrationfiltered through a pad of celite
  3. washwashed with ethyl acetate
  4. customThe combined filtrate was evaporated in vacuo
  5. customThe resulting residue was purified
  6. washcolumn chromatography (eluted with 0-20% ethyl acetate/DCM)

Sources & evidence

ORD record
ord-f6506aa55cff4623b8e8daf7a353b54a
Source dataset
uspto-grants-2016_01
Patent number
US09243002B2

Reaction notes

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