Water → Nilotinib

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

12 g 4-methyl-N-[3-(4-methyl-imidazol-1-yl)-5-trifluoromethyl-phenyl]-3-(4-pyridin-3-yl-pyrimidin-2-ylamino)-benzamide hydrochloride is dissolved in 192 mL of methanol and 21 ml of water at 52° C. The solution is heated to 64-66° C. in 10 minutes and let stand for 45 minutes. The solution is then cooled down in 3 hours at 0° C. The solution spontaneously crystallized before 0° C.; therefore, the cooling ramp was stopped at 20° C. and let stand with stirring for 2 days. The suspension is cooled down to 0° C. in 2 hours before filtration under vacuum to obtain form A of the hydrochloride salt of 4-methyl-N-[3-(4-methyl-imidazol-1-yl)-5-trifluoromethyl-phenyl]-3-(4-pyridin-3-yl-pyrimidin-2-ylamino)-benzamide.

Herkunft & Nachweise