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3-Chloro-4-fluoroaniline → tert-Butyl 4-[(3-chloro-4-fluorophenyl)amino]-3-cyano-5,8-dihydrothieno[2,3-b:5,4-c']dipyridine-7(6H)-carboxylate

HRID 38541
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HRID 38541 반응식
Cl[C:2]1[C:7]([C:8]#[N:9])=[CH:6][N:5]=[C:4]2[S:10][C:11]3[CH2:12][N:13]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:14][CH2:15][C:16]=3[C:3]=12.[Cl:24][C:25]1[CH:26]=[C:27]([CH:29]=[CH:30][C:31]=1[F:32])[NH2:28].CC(C1C=C(C(C)C)C(C2C=CC=CC=2P(C2CCCCC2)C2CCCCC2)=C(C(C)C)C=1)C.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].C1COCC1.CN(C=O)C>[Cl:24][C:25]1[CH:26]=[C:27]([NH:28][C:2]2[C:7]([C:8]#[N:9])=[CH:6][N:5]=[C:4]3[S:10][C:11]4[CH2:12][N:13]([C:17]([O:19][C:20]([CH3:21])([CH3:23])[CH3:22])=[O:18])[CH2:14][CH2:15][C:16]=4[C:3]=23)[CH:29]=[CH:30][C:31]=1[F:32]
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참가 물질

8

반응물 4

HCID 97083-Chloro-4-fluoroanilineHCID 10796Cesium carbonateHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 58116935tert-Butyl 4-chloro-3-cyano-5,8-dihydrothieno[2,3-b:5,4-c']dipyridine-7(6H)-carboxylate

생성물 1

HCID 58116801tert-Butyl 4-[(3-chloro-4-fluorophenyl)amino]-3-cyano-5,8-dihydrothieno[2,3-b:5,4-c']dipyridine-7(6H)-carboxylate
수율 68%

시약·촉매·용매 3

HCID 9811564Bis(dibenzylideneacetone)palladium촉매HCID 6228Dimethylformamide용매HCID 8028Tetrahydrofuran용매

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온도
90 °C

실험 절차

To a solution of tert-butyl 4-chloro-3-cyano-5,8-dihydrothieno[2,3-b:5,4-c′]dipyridine-7(6H)-carboxylate from Example 53A (150 mg, 0.43 mmol) in a degassed mixture of DMF (1.5 mL) and THF (1.5 mL) were added 3-chloro-4-fluoroaniline (62 mg, 0.43 mmol), XPHOS (4.1 mg, 0.009 mmol), caesium carbonate (196 mg, 0.60 mmol) and tris(dibenzylideneacetone)dipalladium(0) (24 mg, 0.026 mmol). The mixture was heated to 90° C. for 1 h. The solvent was removed in vacuo, and the residue was purified by column chromatography on silica gel (eluent: DCM/MeOH 50:1) to yield 190 mg (70% purity, 68% yield) of the title compound, which was used in the next step without further purification.

후처리

  1. customThe solvent was removed in vacuo
  2. customthe residue was purified by column chromatography on silica gel (eluent: DCM/MeOH 50:1)

출처 및 근거

ORD 기록
ord-86ef515523bc4511902653c08c8cb36c
출처 데이터셋
uspto-grants-2013_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08524722B2

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