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1-Hydroxybenzotriazole → (2-(4-hydroxy-2,6-dimethyl-phenyl)-1-{isopropyl-[1-(4-phenyl-1H-imidazol-2-yl)-ethyl]-carbamoyl}-ethyl)-carbamic acid tert-butyl ester

HRID 1913554
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Reaktionsgleichung

Reaktionsgleichung von HRID 1913554
[C:1]([O:5][C:6]([NH:8][CH:9]([CH2:13][C:14]1[C:19]([CH3:20])=[CH:18][C:17]([OH:21])=[CH:16][C:15]=1[CH3:22])[C:10]([OH:12])=O)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH:23]([NH:26][CH:27]([C:29]1[NH:30][CH:31]=[C:32]([C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=2)[N:33]=1)[CH3:28])([CH3:25])[CH3:24].ON1C2C=CC=CC=2N=N1.Cl.CN(C)CCCN=C=NCC>CN(C=O)C>[C:1]([O:5][C:6](=[O:7])[NH:8][CH:9]([C:10](=[O:12])[N:26]([CH:23]([CH3:25])[CH3:24])[CH:27]([C:29]1[NH:30][CH:31]=[C:32]([C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=2)[N:33]=1)[CH3:28])[CH2:13][C:14]1[C:19]([CH3:20])=[CH:18][C:17]([OH:21])=[CH:16][C:15]=1[CH3:22])([CH3:2])([CH3:3])[CH3:4]
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Komponenten

6

Edukt 4

HCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 13656656Boc-L-2,6-DimethyltyrosineHCID 178457142HCID 178457142, Verbindung

Produkt 1

HCID 178429012(2-(4-hydroxy-2,6-dimethyl-phenyl)-1-{isopropyl-[1-(4-phenyl-1H-imidazol-2-yl)-ethyl]-carbamoyl}-ethyl)-carbamic acid tert-butyl ester
Ausbeute 50 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

Into a solution of 2-tert-Butoxycarbonylamino-3-(4-hydroxy-2,6-dimethyl-phenyl)-propionic acid (0.18 g, 0.6 mmol) in DMF (7 mL) was added isopropyl-[1-(4-phenyl-1H-imidazol-2-yl)-ethyl]-amine (0.11 g, 0.5 mmol), 1-hydroxybenzotriazole (0.22 g, 1.6 mmol) and 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide hydrochloride (0.12 g, 0.6 mmol). The resulting mixture was stirred under an Argon atmosphere at rt overnight. The reaction mixture was extracted with EtOAc and the combined organic extracts were washed sequentially with saturated aqueous NaHCO3 solution, 1N HCl, saturated aqueous NaHCO3 solution, and brine. The organic phase was then dried over MgSO4, filtered, and the filtrate was concentrated under reduced pressure. The resulting residue was purified by flash column chromatography (eluent: EtOAc) to afford the product (2-(4-hydroxy-2,6-dimethyl-phenyl)-1-{isopropyl-[1-(4-phenyl-1H-imidazol-2-yl)-ethyl]-carbamoyl}-ethyl)-carbamic acid tert-butyl ester (0.13 g, 50%). MS (ES+): 521.5 (100%).

Aufarbeitung

  1. extractionThe reaction mixture was extracted with EtOAc
  2. washthe combined organic extracts were washed sequentially with saturated aqueous NaHCO3 solution, 1N HCl, saturated aqueous NaHCO3 solution, and brine
  3. dry with materialThe organic phase was then dried over MgSO4
  4. filtrationfiltered
  5. concentrationthe filtrate was concentrated under reduced pressure
  6. customThe resulting residue was purified by flash column chromatography (eluent: EtOAc)

Quellen und Nachweise

ORD-Eintrag
ord-e86fa6e7fc4c4713bc7b8af37f471d8b
Quelldatensatz
uspto-grants-2013_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08609709B2

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