Dichloromethane → 4-chloro-N-({4-chloro-3-[(3-cyano-5-cyclopropylphenyl)oxy]-2-fluorophenyl}methyl)-1-({[2-(trimethylsilyl)ethyl]oxy}methyl)-1H-imidazole-5-carboxamide

HRID 1874909

Reaktionsgleichung

Reaktionsgleichung von HRID 1874909
[OH-].[K+].[CH3:3]N(N=O)C(N)=O.[Cl:10][C:11]1[N:12]=[CH:13][N:14]([CH2:39][O:40][CH2:41][CH2:42][Si:43]([CH3:46])([CH3:45])[CH3:44])[C:15]=1[C:16]([NH:18][CH2:19][C:20]1[CH:25]=[CH:24][C:23]([Cl:26])=[C:22]([O:27][C:28]2[CH:33]=[C:32]([CH:34]=[CH2:35])[CH:31]=[C:30]([C:36]#[N:37])[CH:29]=2)[C:21]=1[F:38])=[O:17].C(Cl)Cl>C(OCC)C.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[Cl:10][C:11]1[N:12]=[CH:13][N:14]([CH2:39][O:40][CH2:41][CH2:42][Si:43]([CH3:44])([CH3:46])[CH3:45])[C:15]=1[C:16]([NH:18][CH2:19][C:20]1[CH:25]=[CH:24][C:23]([Cl:26])=[C:22]([O:27][C:28]2[CH:33]=[C:32]([CH:34]3[CH2:3][CH2:35]3)[CH:31]=[C:30]([C:36]#[N:37])[CH:29]=2)[C:21]=1[F:38])=[O:17]

Komponenten

7

Edukt 4

HCID 6344DichloromethaneHCID 12699N-Methyl-N-nitrosoureaHCID 14797Potassium HydroxideHCID 684870564-chloro-N-({4-chloro-3-[(3-cyano-5-ethenylphenyl)oxy]-2-fluorophenyl}methyl)-1-({[2-(trimethylsilyl)ethyl]oxy}methyl)-1H-imidazole-5-carboxamide

Produkt 1

HCID 684876074-chloro-N-({4-chloro-3-[(3-cyano-5-cyclopropylphenyl)oxy]-2-fluorophenyl}methyl)-1-({[2-(trimethylsilyl)ethyl]oxy}methyl)-1H-imidazole-5-carboxamide

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 167845palladium(II) acetateKatalysatorHCID 3283Diethyl EtherLösungsmittel2×

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

To a mixture of 30% aqueous KOH (30 mL) and diethyl ether (30 mL) was added N-methyl-N-nitrosourea (0.264 g, 2.56 mmol) in one potion with stirring and cooling at 0° C. and the reaction mixture was maintained at this temperature for 20 min. The organic phase was isolated, dried over KOH pellets and added dropwise to a solution of 4-chloro-N-({4-chloro-3-[(3-cyano-5-ethenylphenyl)oxy]-2-fluorophenyl}methyl)-1-({[2-(trimethylsilyl)ethyl]oxy}methyl)-1H-imidazole-5-carboxamide (0.144 g, 0.256 mmol) and palladium(II) acetate (5.8 mg, 0.026 mmol) in diethyl ether (30.0 mL) with stirring and cooling at 0° C. DCM (20 mL) was added to the reaction mixture to achieve complete solution and the reaction mixture was stirred at 0° C. for 1 h at which time LC-MS indicated complete conversion to desired product. Water and a small amount of acetic acid were added to the reaction mixture and stirred vigorously at room temperature for 1 h. The organic phase was isolated, washed with saturated aqueous NaHCO3, dried over MgSO4, filtered and concentrated to dryness. The residue was purified on 40 g silica gel eluted with 20 to 60% EtOAc/hexanes to give 4-chloro-N-({4-chloro-3-[(3-cyano-5-cyclopropylphenyl)oxy]-2-fluorophenyl}methyl)-1-({[2-(trimethylsilyl)ethyl]oxy}methyl)-1H-imidazole-5-carboxamide (0.132 g, 0.230 mmol, 90% yield) as a clear oil. 1H NMR (400 MHz, DMSO-d6) δ ppm 8.79 (t, J=5.68 Hz, 1H), 8.00 (s, 1H), 7.36-7.54 (m, 2H), 7.28 (s, 1H), 7.11 (s, 1H), 7.05 (s, 1H), 5.51 (s, 2H), 4.50 (d, J=5.68 Hz, 2H), 3.40 (t, J=8.10 Hz, 2H), 1.92-2.05 (m, 1H), 0.95-1.05 (m, 2H), 0.71-0.82 (m, 4H), −0.07 (s, 9H). LC-MS (ES−) m/z 575.13, 575.05 [M−1]. LC-MS (ES+) m/z 575.11, 577.12 [M+H].

Aufarbeitung

  1. temperaturethe reaction mixture was maintained at this temperature for 20 min
  2. customThe organic phase was isolated
  3. dry with materialdried over KOH pellets
  4. stirringwith stirring
  5. temperaturecooling at 0° C
  6. stirringthe reaction mixture was stirred at 0° C. for 1 h at which time LC-MS

Quellen und Nachweise

ORD-Eintrag
ord-1e3a592c0ff44c908855241d62169de0
Quelldatensatz
uspto-grants-2012_11
Patentnummer
US08304419B2

Verknüpfte Notizen

Wird geladen…