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Potassium Phosphate, Tribasic → Methyl 5-{4-[3-({[tert-butyl(dimethyl)silyl]oxy}methyl)-2-fluorophenyl]piperazin-1-yl}pyridine-2-carboxylate

HRID 1021227
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HRID 1021227 반응식
[Si:1]([O:8][CH2:9][C:10]1[C:11]([F:22])=[C:12]([N:16]2[CH2:21][CH2:20][NH:19][CH2:18][CH2:17]2)[CH:13]=[CH:14][CH:15]=1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].Br[C:24]1[CH:25]=[CH:26][C:27]([C:30]([O:32][CH3:33])=[O:31])=[N:28][CH:29]=1.C1(P(C2CCCCC2)C2C=CC=CC=2C2C(C(C)C)=CC(C(C)C)=CC=2C(C)C)CCCCC1.P([O-])([O-])([O-])=O.[K+].[K+].[K+]>C([O-])(=O)C.[Pd+2].C([O-])(=O)C.O1CCOCC1>[Si:1]([O:8][CH2:9][C:10]1[C:11]([F:22])=[C:12]([N:16]2[CH2:21][CH2:20][N:19]([C:24]3[CH:25]=[CH:26][C:27]([C:30]([O:32][CH3:33])=[O:31])=[N:28][CH:29]=3)[CH2:18][CH2:17]2)[CH:13]=[CH:14][CH:15]=1)([C:4]([CH3:7])([CH3:5])[CH3:6])([CH3:3])[CH3:2]
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참가 물질

7

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HCID 62657Potassium Phosphate, TribasicHCID 7016458Methyl 5-bromopyridine-2-carboxylateHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 866862021-[3-({[tert-Butyl(dimethyl)silyl]oxy}methyl)-2-fluorophenyl]piperazine

생성물 1

HCID 86686201Methyl 5-{4-[3-({[tert-butyl(dimethyl)silyl]oxy}methyl)-2-fluorophenyl]piperazin-1-yl}pyridine-2-carboxylate
수율 43.8%

시약·촉매·용매 2

HCID 167845palladium(II) acetate촉매HCID 312751,4-Dioxane용매

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온도
100 °C

실험 절차

1-[3-({[tert-Butyl(dimethyl)silyl]oxy}methyl)-2-fluorophenyl]piperazine (500 mg) was mixed with dioxane (15 ml), and methyl 5-bromopyridine-2-carboxylate (399 mg), palladium acetate (35 mg), 2-dicyclohexylphosphino-2′,4′,6′-tri-isopropyl-1,1′-biphenyl (147 mg), and potassium phosphate (981 mg) were added thereto, followed by stirring at 100° C. for 48 hours. The reaction mixture was cooled to room temperature, and filtered by the addition of CHCl3 and Celite, and the filtrate was concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (EtOAc/hexane) to obtain methyl 5-{4-[3-({[tert-butyl(dimethyl)silyl]oxy}methyl)-2-fluorophenyl]piperazin-1-yl}pyridine-2-carboxylate (310 mg).

후처리

  1. additionwere added
  2. temperatureThe reaction mixture was cooled to room temperature
  3. filtrationfiltered by the addition of CHCl3 and Celite
  4. concentrationthe filtrate was concentrated under reduced pressure
  5. customThe obtained residue was purified by silica gel column chromatography (EtOAc/hexane)

출처 및 근거

ORD 기록
ord-3d38322a3ca44e0abadd2aa2816f94e6
출처 데이터셋
uspto-grants-2014_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08716470B2

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