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Formamide → N-(2-(difluoro(5-fluoropyridin-2-yl)methyl)-4-(methylthio)quinazolin-8-yl)formamide

HRID 473204
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HRID 473204 반응식
Br[C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:11]=1[N:10]=[C:9]([C:12]([F:21])([F:20])[C:13]1[CH:18]=[CH:17][C:16]([F:19])=[CH:15][N:14]=1)[N:8]=[C:7]2[S:22][CH3:23].C1(P(C2C=CC=CC=2)C2C3OC4C(=CC=CC=4P(C4C=CC=CC=4)C4C=CC=CC=4)C(C)(C)C=3C=CC=2)C=CC=CC=1.[CH:66]([NH2:68])=[O:67].C([O-])([O-])=O.[Cs+].[Cs+]>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].O1CCOCC1>[F:20][C:12]([F:21])([C:13]1[CH:18]=[CH:17][C:16]([F:19])=[CH:15][N:14]=1)[C:9]1[N:8]=[C:7]([S:22][CH3:23])[C:6]2[C:11](=[C:2]([NH:68][CH:66]=[O:67])[CH:3]=[CH:4][CH:5]=2)[N:10]=1
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참가 물질

7

반응물 4

HCID 713FormamideHCID 10796Cesium carbonateHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 666094698-Bromo-2-(difluoro(5-fluoropyridin-2-yl)methyl)-4-(methylthio)quinazoline

생성물 1

HCID 86662704N-(2-(difluoro(5-fluoropyridin-2-yl)methyl)-4-(methylthio)quinazolin-8-yl)formamide수율 74%

시약·촉매·용매 2

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

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온도
90 °C

실험 절차

To a mixture of 8-bromo-2-(difluoro(5-fluoropyridin-2-yl)methyl)-4-(methylthio)quinazoline from Example 35 step B (250 mg, 0.63 mmol), tris(dibenzylideneacetone)dipalladium (58 mg, 0.063 mmol), 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (109 mg, 0.19 mmol), formamide (0.075 mL, 1.875 mmol) and Cs2CO3 (284 mg, 0.875 mmol) was added dioxane (4 mL). The reaction vessel was evacuated and flushed with argon (3×) and the mixture was heated at 90° C. overnight. The mixture was diluted with DCM and concentrated under reduced pressure onto Celite. The residue was purified by silica gel chromatography eluting with 0-50% EtOAc/hexanes to afford N-(2-(difluoro(5-fluoropyridin-2-yl)methyl)-4-(methylthio)quinazolin-8-yl)formamide (168 mg, 74%).

후처리

  1. customThe reaction vessel was evacuated
  2. customflushed with argon (3×)
  3. additionThe mixture was diluted with DCM
  4. concentrationconcentrated under reduced pressure onto Celite
  5. customThe residue was purified by silica gel chromatography
  6. washeluting with 0-50% EtOAc/hexanes

출처 및 근거

ORD 기록
ord-6140300753964b4c84c528ebe34d0a47
출처 데이터셋
uspto-grants-2014_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08633207B2

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