Trifluoroacetic acid → 6-(2-Isopropyl-6-methoxy-1H-indol-3-ylmethyl)pyridine-2-carbonitrile

HRID 2409992Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2409992
[C:1]([C:3]1[N:8]=[C:7]([CH2:9][CH:10]([C:16]2[CH:21]=[CH:20][C:19]([O:22][CH3:23])=[CH:18][C:17]=2[NH:24]C(=O)OC(C)(C)C)[C:11](=O)[CH:12]([CH3:14])[CH3:13])[CH:6]=[CH:5][CH:4]=1)#[N:2].FC(F)(F)C(O)=O.C(=O)([O-])O.[Na+]>ClCCl>[CH:12]([C:11]1[NH:24][C:17]2[C:16]([C:10]=1[CH2:9][C:7]1[N:8]=[C:3]([C:1]#[N:2])[CH:4]=[CH:5][CH:6]=1)=[CH:21][CH:20]=[C:19]([O:22][CH3:23])[CH:18]=2)([CH3:14])[CH3:13]

Komponenten

5

Edukt 3

HCID 6422Trifluoroacetic acidHCID 516892Sodium BicarbonateHCID 86703307tert-Butyl {2-[1-(6-cyanopyridin-2-ylmethyl)-3-methyl-2-oxobutyl]-5-methoxyphenyl}carbamate

Produkt 1

HCID 867033096-(2-Isopropyl-6-methoxy-1H-indol-3-ylmethyl)pyridine-2-carbonitrileAusbeute 93,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of tert-butyl {2-[1-(6-cyanopyridin-2-ylmethyl)-3-methyl-2-oxobutyl]-5-methoxyphenyl}carbamate (269 mg) in dichloromethane (13 mL) was added trifluoroacetic acid (2.6 mL) under ice-cooling, and the mixture was stirred at room temperature for 2.75 hours. To the reaction mixture was added a saturated aqueous sodium hydrogen carbonate solution. The organic layer was separated, washed with saturated brine, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluting solvent: ethyl acetate-hexane) to obtain the title compound (181 mg). 1H-NMR (CDCl3) δ ppm: 1.28 (6H, d, J=7.0 Hz), 3.21-3.35 (1H, m), 3.83 (3H, s), 4.26 (2H, s), 6.73 (1H, dd, J=2.3, 8.8 Hz), 6.86 (1H, d, J=2.3 Hz), 7.19-7.29 (2H, m), 7.45-7.52 (1H, m), 7.55-7.64 (1H, m), 7.80 (1H, br s).

Aufarbeitung

  1. temperaturecooling
  2. customThe organic layer was separated
  3. washwashed with saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (eluting solvent: ethyl acetate-hexane)

Quellen und Nachweise

ORD-Eintrag
ord-1642c346eddb44a3bba73950a2ec78d9
Quelldatensatz
uspto-grants-2014_08
Patentnummer
US08815903B2

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