Cesium carbonate → N-(4-((2-(cyclopropanecarboxamido)pyridin-4-yl)oxy)-2,5-difluorophenyl)-4-ethoxy-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide

HRID 1411147Notes

Reaction equation

HRID 1411147 reaction equation
Cl[C:2]1[CH:7]=[C:6]([O:8][C:9]2[C:14]([F:15])=[CH:13][C:12]([NH:16][C:17]([C:19]3[C:20](=[O:35])[N:21]([C:28]4[CH:33]=[CH:32][C:31]([F:34])=[CH:30][CH:29]=4)[CH:22]=[CH:23][C:24]=3[O:25][CH2:26][CH3:27])=[O:18])=[C:11]([F:36])[CH:10]=2)[CH:5]=[CH:4][N:3]=1.[CH:37]1([C:40]([NH2:42])=[O:41])[CH2:39][CH2:38]1.C([O-])([O-])=O.[Cs+].[Cs+].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2>O1CCOCC1>[CH:37]1([C:40]([NH:42][C:2]2[CH:7]=[C:6]([O:8][C:9]3[C:14]([F:15])=[CH:13][C:12]([NH:16][C:17]([C:19]4[C:20](=[O:35])[N:21]([C:28]5[CH:33]=[CH:32][C:31]([F:34])=[CH:30][CH:29]=5)[CH:22]=[CH:23][C:24]=4[O:25][CH2:26][CH3:27])=[O:18])=[C:11]([F:36])[CH:10]=3)[CH:5]=[CH:4][N:3]=2)=[O:41])[CH2:39][CH2:38]1

Participants

6

Reactant 4

HCID 10796Cesium carbonateHCID 80376CyclopropanecarboxamideHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 86703361N-(4-((2-chloropyridin-4-yl)oxy)-2,5-difluorophenyl)-4-ethoxy-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide

Product 1

HCID 71575771N-(4-((2-(cyclopropanecarboxamido)pyridin-4-yl)oxy)-2,5-difluorophenyl)-4-ethoxy-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamideYield 30.1%

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent

Conditions

Temperature
100 °C

Procedure

A mixture of N-(4-((2-chloropyridin-4-yl)oxy)-2,5-difluorophenyl)-4-ethoxy-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (0.100 g, 0.194 mmol, see: Example 1), cyclopropanecarboxamide (0.033 g, 0.388 mmol), Cs2CO3 (0.095 g, 0.291 mmol) and Xantphos (5.05 mg, 8.72 μmmol) in dioxane (2 mL) was sparged with argon, treated with Pd2(dba)3 (2.66 mg, 2.91 μmmol), sparged again with argon, then fitted with a reflux condensor capped with an argon-filled balloon and heated to 100° C. overnight. The mixture was cooled to RT and partitioned between water and EtOAc. The organic layer was washed with brine, dried over MgSO4, concentrated to dryness and purified via silica gel chromatography (EtOAc/Hex) to afford N-(4-((2-(cyclopropanecarboxamido)pyridin-4-yl)oxy)-2,5-difluorophenyl)-4-ethoxy-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (33 mg, 30% yield) as a solid. MS (ESI) m/z: 565.2 (M+H+).

Workup

  1. customwas sparged with argon
  2. additiontreated with Pd2(dba)3 (2.66 mg, 2.91 μmmol)
  3. customsparged again with argon
  4. customfitted with a reflux condensor
  5. customcapped with an argon-
  6. additionfilled balloon
  7. temperatureThe mixture was cooled to RT
  8. custompartitioned between water and EtOAc
  9. washThe organic layer was washed with brine
  10. dry with materialdried over MgSO4
  11. concentrationconcentrated to dryness
  12. custompurified via silica gel chromatography (EtOAc/Hex)

Sources & evidence

ORD record
ord-404b4fa4f3534e52b39bca361cb3da30
Source dataset
uspto-grants-2014_12
Patent number
US08921565B2

Reaction notes

Loading…