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Cesium fluoride → ethyl 8-(4-amino-2,5-difluoro-phenyl)-1-cyclopropyl-7-fluoro-9-methyl-4-oxo-4H-quinolizine-3-carboxylate

HRID 1478343
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HRID 1478343 반응식
Cl[C:2]1[C:3]([F:22])=[CH:4][N:5]2[C:10]([C:11]=1[CH3:12])=[C:9]([CH:13]1[CH2:15][CH2:14]1)[CH:8]=[C:7]([C:16]([O:18][CH2:19][CH3:20])=[O:17])[C:6]2=[O:21].[F:23][C:24]1[CH:30]=[C:29](B2OC(C)(C)C(C)(C)O2)[C:28]([F:40])=[CH:27][C:25]=1[NH2:26].C1(P(C2CCCCC2)C2CCCCC2)CCCCC1.[F-].[Cs+]>C([O-])(=O)C.[Pd+2].C([O-])(=O)C.C(#N)C>[NH2:26][C:25]1[C:24]([F:23])=[CH:30][C:29]([C:2]2[C:3]([F:22])=[CH:4][N:5]3[C:10]([C:11]=2[CH3:12])=[C:9]([CH:13]2[CH2:15][CH2:14]2)[CH:8]=[C:7]([C:16]([O:18][CH2:19][CH3:20])=[O:17])[C:6]3=[O:21])=[C:28]([F:40])[CH:27]=1
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참가 물질

7

반응물 4

HCID 25953Cesium fluorideHCID 75806TricyclohexylphosphineHCID 9927245Ethyl 8-chloro-1-cyclopropyl-7-fluoro-9-methyl-4-oxo-4H-quinolizine-3-carboxylateHCID 579551442,5-Difluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-YL)aniline

생성물 1

HCID 86696745ethyl 8-(4-amino-2,5-difluoro-phenyl)-1-cyclopropyl-7-fluoro-9-methyl-4-oxo-4H-quinolizine-3-carboxylate
수율 75%

시약·촉매·용매 2

HCID 167845palladium(II) acetate촉매HCID 6342Acetonitrile용매

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온도
85 °C

실험 절차

Ethyl 8-chloro-1-cyclopropyl-7-fluoro-9-methyl-4-oxo-4H-quinolizine-3-carboxylate (100 mg, 0.32 mmol), 2,5-difluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-aniline (667 mg, 2.06 mmol), tricyclohexylphosphine (105 mg, 0.41 mmol) and cesium fluoride (482 mg, 3.2 mmol) were added to ACN (5 mL). The reaction mixture was degassed with argon. Palladium(II) acetate (24 mg, 0.11 mmol) was added. The reaction mixture was heated at 85° C. for 2 h. The reaction mixture was cooled and evaporated in vacuum. Purification by flash silica column chromatography (DCM:MeOH) (1:0 to 9:1) afforded the title compound as a yellow solid (100 mg, 35%).

후처리

  1. customThe reaction mixture was degassed with argon
  2. temperatureThe reaction mixture was cooled
  3. customevaporated in vacuum
  4. customPurification by flash silica column chromatography (DCM:MeOH) (1:0 to 9:1)

출처 및 근거

ORD 기록
ord-ab44a33b63cc40bab74ffde5678b426b
출처 데이터셋
uspto-grants-2016_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09403818B2

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