Cesium carbonate → tert-butyl 4-((5-(2-(4-chloro-3-methoxyphenyl)propan-2-yl)-1-(4-fluorophenyl)-1H-imidazol-2-ylthio)methyl)-3,5-difluorobenzoate

HRID 83892Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 83892
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([C:11]2[N:15]([C:16]3[CH:21]=[CH:20][C:19]([F:22])=[CH:18][CH:17]=3)[C:14]([SH:23])=[N:13][CH:12]=2)([CH3:10])[CH3:9])=[CH:4][C:3]=1[O:24][CH3:25].[F:26][C:27]1[CH:28]=[C:29]([CH:37]=[C:38]([F:46])[C:39]=1[CH2:40]OS(C)(=O)=O)[C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31].C([O-])([O-])=O.[Cs+].[Cs+]>CC#N.O>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([C:11]2[N:15]([C:16]3[CH:21]=[CH:20][C:19]([F:22])=[CH:18][CH:17]=3)[C:14]([S:23][CH2:40][C:39]3[C:38]([F:46])=[CH:37][C:29]([C:30]([O:32][C:33]([CH3:36])([CH3:34])[CH3:35])=[O:31])=[CH:28][C:27]=3[F:26])=[N:13][CH:12]=2)([CH3:10])[CH3:9])=[CH:4][C:3]=1[O:24][CH3:25]

Komponenten

6

Edukt 3

HCID 10796Cesium carbonateHCID 86662220Tert-butyl 3,5-difluoro-4-((methylsulfonyloxy)methyl)benzoateHCID 1784900045-(2-(4-chloro-3-methoxyphenyl)propan-2-yl)-1-(4-fluorophenyl)-1H-imidazole-2-thiol

Produkt 1

HCID 66740019tert-butyl 4-((5-(2-(4-chloro-3-methoxyphenyl)propan-2-yl)-1-(4-fluorophenyl)-1H-imidazol-2-ylthio)methyl)-3,5-difluorobenzoateAusbeute 98.450,5 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

A mixture of 5-(2-(4-chloro-3-methoxyphenyl)propan-2-yl)-1-(4-fluorophenyl)-1H-imidazole-2-thiol (60 g, 0.16 mmol), tert-butyl 3,5-difluoro-4-((methylsulfonyloxy)methyl)benzoate (51 g, 0.16 mol, 1.0 eq.) and Cs2CO3 (62 g, 0.19 mol, 1.2 eq.) in MeCN (680 mL) was stirred for 2 h and evaporated to give a residue. The residue was diluted with water (1.5 L) and extracted with CH2Cl2 (1 L). The organic layer was washed with brine, dried over MgSO4, filtered and concentrated in vacuo to give tert-butyl 4-((5-(2-(4-chloro-3-methoxyphenyl)propan-2-yl)-1-(4-fluorophenyl)-1H-imidazol-2-ylthio)methyl)-3,5-difluorobenzoate (95 g, quant). 1H NMR (400 MHz, CDCl3) δ 7.40-7.42 (d, 2H), 7.19 (s, 1H), 7.14-7.16 (d, 1H), 6.76-6.80 (t, 2H), 6.51 (s, 1H), 6.41-6.49 (m, 3H), 4.07 (s, 2H), 3.75 (s, 3H), 1.58 (s, 9H), 1.47 (s, 6H).

Aufarbeitung

  1. customevaporated
  2. customto give a residue
  3. extractionextracted with CH2Cl2 (1 L)
  4. washThe organic layer was washed with brine
  5. dry with materialdried over MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-3a30401fac3845e7b3c813a9cee9d71f
Quelldatensatz
uspto-grants-2014_09
Patentnummer
US08846739B2

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