Cesium carbonate → N-(2,5-difluoro-4-((2-pivalamidopyridin-4-yl)oxy)phenyl)-4-ethoxy-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide

HRID 1050865노트

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HRID 1050865 반응식
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.[C:37]([NH2:43])(=[O:42])[C:38]([CH3:41])([CH3:40])[CH3:39].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.C([O-])([O-])=O.[Cs+].[Cs+]>O1CCOCC1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[F:36][C:11]1[CH:10]=[C:9]([O:8][C:6]2[CH:5]=[CH:4][N:3]=[C:2]([NH:43][C:37](=[O:42])[C:38]([CH3:41])([CH3:40])[CH3:39])[CH:7]=2)[C:14]([F:15])=[CH:13][C:12]=1[NH:16][C:17]([C:19]1[C:20](=[O:35])[N:21]([C:28]2[CH:33]=[CH:32][C:31]([F:34])=[CH:30][CH:29]=2)[CH:22]=[CH:23][C:24]=1[O:25][CH2:26][CH3:27])=[O:18]

참가 물질

7

반응물 4

HCID 10796Cesium carbonateHCID 12957TrimethylacetamideHCID 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

생성물 1

HCID 71575772N-(2,5-difluoro-4-((2-pivalamidopyridin-4-yl)oxy)phenyl)-4-ethoxy-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide수율 29.7%

시약·촉매·용매 2

HCID 9811564Bis(dibenzylideneacetone)palladium촉매HCID 312751,4-Dioxane용매

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온도
100 °C

실험 절차

N-(4-((2-chloropyridin-4-yl)oxy)-2,5-difluorophenyl)-4-ethoxy-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (0.15 g, 0.29 mmol, see: Example 1) was combined with pivalamide (0.12 g, 1.16 mmol), Xantphos (0.02 g, 0.033 mmol), and Cs2CO3 (0.14 g, 0.44 mmol) in dioxane (5 mL). The mixture was sparged with argon for several min, treated with Pd2(dba)3 (0.015 g, 0.016 mmol), and heated at 100° C. overnight. The mixture was cooled to RT and filtered, washing with dioxane. The filtrate was concentrated to dryness and the residue was purified by reverse-phase chromatography [10%-45% CH3CN/H2O with 0.1% TFA]. The pure fractions were combined and co-evaporated with MeOH. The aqueous layer was neutralized with NaHCO3 and extracted with EtOAc. The organic layer was washed with brine, dried over Na2SO4, and concentrated to obtain N-(2,5-difluoro-4-((2-pivalamidopyridin-4-yl)oxy)phenyl)-4-ethoxy-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (50 mg, 29.6% yield). 1H NMR (400 MHz, DMSO-d6): δ 11.23 (s, 1 H), 9.89 (s, 1 H), 8.34 (dd, J=12.6, 7.2 Hz, 1 H), 8.21 (d, J=5.7 Hz, 1 H), 7.92 (d, J=7.8 Hz, 1 H), 7.66 (d, J=2.4 Hz, 1 H) 7.51-7.48 (m, 3 H), 7.36 (t, J=8.7 Hz, 2 H), 6.76 (dd, J=5.7, 2.5 Hz, 1 H), 6.55 (d, J=7.9 Hz, 1 H), 4.28-4.27 (m, 2 H), 1.34 (t, J=6.98 Hz, 3 H), 1.05 (s, 9 H); MS (ESI) m/z: 581.2 (M+H+).

후처리

  1. customThe mixture was sparged with argon for several min
  2. temperatureThe mixture was cooled to RT
  3. filtrationfiltered
  4. washwashing with dioxane
  5. concentrationThe filtrate was concentrated to dryness
  6. customthe residue was purified by reverse-phase chromatography [10%-45% CH3CN/H2O with 0.1% TFA]
  7. extractionextracted with EtOAc
  8. washThe organic layer was washed with brine
  9. dry with materialdried over Na2SO4
  10. concentrationconcentrated

출처 및 근거

ORD 기록
ord-fb2e84dac3954a25a11dd2b43ba0b53b
출처 데이터셋
uspto-grants-2016_07
특허 번호
US09387202B2

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