Sodium Bicarbonate → 4,4'-bis-[2-(2-tert-butoxycarbonyl-2-aza-bicyclo[2.2.1]hept-3-yl)-3H-imidazol-4-yl]-biphenyl

HRID 71711

Reaktionsgleichung

Reaktionsgleichung von HRID 71711
[C:1]([O:5][C:6]([N:8]1[CH:13]([C:14]2[NH:15][C:16]([C:19]3[CH:24]=[CH:23][C:22](B4OC(C)(C)C(C)(C)O4)=[CH:21][CH:20]=3)=[CH:17][N:18]=2)[CH:12]2[CH2:34][CH:9]1[CH2:10][CH2:11]2)=[O:7])([CH3:4])([CH3:3])[CH3:2].[C:35]([O:39][C:40]([N:42]1[CH:47]([C:48]2[NH:49][C:50]([C:53]3[CH:58]=[CH:57][C:56](Br)=[CH:55][CH:54]=3)=[CH:51][N:52]=2)[CH:46]2[CH2:60][CH:43]1[CH2:44][CH2:45]2)=[O:41])([CH3:38])([CH3:37])[CH3:36].C(=O)(O)[O-].[Na+]>O.CCOC(C)=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:35]([O:39][C:40]([N:42]1[CH:47]([C:48]2[NH:49][C:50]([C:53]3[CH:58]=[CH:57][C:56]([C:22]4[CH:21]=[CH:20][C:19]([C:16]5[NH:15][C:14]([CH:13]6[CH:12]7[CH2:34][CH:9]([CH2:10][CH2:11]7)[N:8]6[C:6]([O:5][C:1]([CH3:4])([CH3:3])[CH3:2])=[O:7])=[N:18][CH:17]=5)=[CH:24][CH:23]=4)=[CH:55][CH:54]=3)=[CH:51][N:52]=2)[CH:46]2[CH2:60][CH:43]1[CH2:44][CH2:45]2)=[O:41])([CH3:38])([CH3:37])[CH3:36]

Komponenten

7

Edukt 3

HCID 516892Sodium BicarbonateHCID 596109073-[5-(4-Bromo-phenyl)-1H-imidazol-2-yl]-2-aza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl esterHCID 666205563-{5-[4-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-1H-imidazol-2-yl}-2-azabicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester

Produkt 1

HCID 666200084,4'-bis-[2-(2-tert-butoxycarbonyl-2-aza-bicyclo[2.2.1]hept-3-yl)-3H-imidazol-4-yl]-biphenylAusbeute 6,1 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 962WaterLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

To the solution of 3-{5-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-1H-imidazol-2-yl}-2-aza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester (560 mg, 1.22 mmol) and 3-[5-(4-bromo-phenyl)-1H-imidazol-2-yl]-2-aza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester (535 mg, 1.28 mmol) in 1,2-dimethoxyether (11 ml) and water (3.5 ml) was added sodium bicarbonate (343 mg, 4 mmol), followed by Pd(PPh3)4 (55 mg). The mixture was heated at 80° C. for 7 hours. The mixture was diluted with EtOAc, and was washed with water and brine, and was dried with sodium sulfate. Concentration and purification by flash column chromatography (DCM/MeOH) gave 4,4′-bis-[2-(2-tert-butoxycarbonyl-2-aza-bicyclo[2.2.1]hept-3-yl)-3H-imidazol-4-yl]-biphenyl (50 mg). m/z: 677.2 (M+H)+.

Aufarbeitung

  1. washwas washed with water and brine
  2. dry with materialwas dried with sodium sulfate
  3. concentrationConcentration and purification by flash column chromatography (DCM/MeOH)

Quellen und Nachweise

ORD-Eintrag
ord-ca5a9fc9d2cc406fbaabb46142a5ac89
Quelldatensatz
uspto-grants-2014_09
Patentnummer
US08822430B2

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