Cesium carbonate → N-(4-((dimethylamino)methyl)-3-(trifluoromethyl)phenyl)-2-(4-(5-ethoxy-6-((4-methoxybenzyl)oxy)pyridin-3-yl)-2-fluorophenyl)acetamide

HRID 1428618Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1428618
[CH2:1]([O:3][C:4]1[C:5]([O:19][CH2:20][C:21]2[CH:26]=[CH:25][C:24]([O:27][CH3:28])=[CH:23][CH:22]=2)=[N:6][CH:7]=[C:8](B2OC(C)(C)C(C)(C)O2)[CH:9]=1)[CH3:2].Br[C:30]1[CH:35]=[CH:34][C:33]([CH2:36][C:37]([NH:39][C:40]2[CH:45]=[CH:44][C:43]([CH2:46][N:47]([CH3:49])[CH3:48])=[C:42]([C:50]([F:53])([F:52])[F:51])[CH:41]=2)=[O:38])=[C:32]([F:54])[CH:31]=1.C([O-])([O-])=O.[Cs+].[Cs+]>O1CCOCC1.O.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH3:48][N:47]([CH2:46][C:43]1[CH:44]=[CH:45][C:40]([NH:39][C:37](=[O:38])[CH2:36][C:33]2[CH:34]=[CH:35][C:30]([C:8]3[CH:7]=[N:6][C:5]([O:19][CH2:20][C:21]4[CH:22]=[CH:23][C:24]([O:27][CH3:28])=[CH:25][CH:26]=4)=[C:4]([O:3][CH2:1][CH3:2])[CH:9]=3)=[CH:31][C:32]=2[F:54])=[CH:41][C:42]=1[C:50]([F:51])([F:52])[F:53])[CH3:49]

Komponenten

7

Edukt 3

HCID 10796Cesium carbonateHCID 904163212-(4-bromo-2-fluorophenyl)-N-(4-((dimethylamino)methyl)-3-(trifluoromethyl)phenyl)acetamideHCID 904167753-Ethoxy-2-((4-methoxybenzyl)oxy)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine

Produkt 1

HCID 90417302N-(4-((dimethylamino)methyl)-3-(trifluoromethyl)phenyl)-2-(4-(5-ethoxy-6-((4-methoxybenzyl)oxy)pyridin-3-yl)-2-fluorophenyl)acetamideAusbeute 80 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)KatalysatorHCID 962WaterLösungsmittelHCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
110 °C

Versuchsvorschrift

To a solution of 3-ethoxy-2-((4-methoxybenzyl)oxy)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (3.52 g, 9.14 mmol), 2-(4-bromo-2-fluorophenyl)-N-(4-((dimethylamino)methyl)-3-(trifluoromethyl)phenyl)acetamide (5.5 g, 9.14 mmol) and Cs2CO3 (7.45 g, 22.85 mmol) in 1,4-dioxane (30 mL) and H2O (10.00 mL) stirred under a N2 atmosphere at 20° C. was added PdCl2(dppf) (0.334 g, 0.457 mmol) in one charge. The reaction vessel was heated in 110° C. for 3 h. Then the solution was concentrated and distributed between EA and H2O. The combined organic extract was washed with brine, dried over MgSO4, filtered and concentrated. The crude material was purified by silica column chromatography (PE/EA=1:1). All fractions found to contain product by TLC (PE/EA=1:1, Rf 0.3) were combined and concentrated to yield a white solid of N-(4-((dimethylamino)methyl)-3-(trifluoromethyl)phenyl)-2-(4-(5-ethoxy-6-((4-methoxybenzyl)oxy)pyridin-3-yl)-2-fluorophenyl)acetamide (5.8 g, 7.30 mmol, 80.0% yield): 1H NMR (400 MHz, CDCl3) δ 7.80-7.98 (m, 3H), 7.67 (d, J=8.6 Hz, 1H), 7.37-7.47 (m, 3H), 7.26-7.35 (m, 2H), 7.20 (d, J=2.0 Hz, 1H), 6.89 (d, J=8.6 Hz, 2H), 5.44 (s, 2H), 4.13 (q, J=7.0 Hz, 2H), 3.75-3.86 (m, 5H), 3.70 (br. s., 2H), 2.35 (br. s., 6H), 1.46 (t, J=7.0 Hz, 3H) ES-LCMS m/z 612.2 (M+H).

Aufarbeitung

  1. additioncharge
  2. concentrationThen the solution was concentrated
  3. extractionThe combined organic extract
  4. washwas washed with brine
  5. dry with materialdried over MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe crude material was purified by silica column chromatography (PE/EA=1:1)
  9. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-4ea6db6df6f940e3b0e9a49a30237f9f
Quelldatensatz
uspto-grants-2015_01
Patentnummer
US08937071B2

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