Reaktion #163229

Reaktionsgleichung

(4-{4-[6-(2-Methyl-6-trifluoromethyl-pyridin-3-ylamino)-pyridin-3-yl]-phenyl}-cyclohexyl)-acetic acid methyl ester

LiOH

→

title compound

(4-{4-[6-(2-Methyl-6-trifluoromethyl-pyridin-3-ylamino)-pyridin-3-yl]-phenyl}cyclohexyl)-acetic acid

Lösungsmittel

THF MeOH

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigethe organic solvent was removed via rotary evaporation
2. 2
   workup.ADDITIONThe remaining crude was diluted with water
3. 3
   FiltrationThe resulting precipitate was collected by filtration
4. 4
   Sonstigedried under vacuum

Vorschrift

(4-{4-[6-(2-Methyl-6-trifluoromethyl-pyridin-3-ylamino)-pyridin-3-yl]-phenyl}-cyclohexyl)-acetic acid methyl ester (332 g, 0.69 mmol) was dissolved in THF/MeOH (3:1, 4 mL) and to it was added aqueous LiOH (4M, 1 mL). The mixture was stirred at room temperature for 18 hours, then the organic solvent was removed via rotary evaporation. The remaining crude was diluted with water and the pH was adjusted to 2 with 1 M HCl. The resulting precipitate was collected by filtration and dried under vacuum to obtain the title compound as a white solid: 1H NMR (400 MHz, DMSO-d6) δ ppm 0.95-1.04 (m, 2H) 1.44 (dd, J=12.51, 2.91 Hz, 2H) 1.67 (br. s., 1H) 1.74-1.87 (m, 6H) 2.47 (m, 1H) 2.60 (s, 3H) 7.25 (d, J=8.59 Hz, 1H) 7.30 (d, J=8.34 Hz, 2H) 7.56 (d, J=8.34 Hz, 2H) 7.66 (d, J=8.34 Hz, 1H) 7.97 (dd, J=8.72, 2.65 Hz, 1H) 8.48 (d, J=2.27 Hz, 1H) 8.67 (d, J=8.34 Hz, 1H) 8.80 (s, 1H); MS (M+H)+470.3.

Quelle