Triethylamine → Trifluoroacetic acid

In an appropriate sized vial the trifluoroacetic acid salt (R)-4-((R)-1-((3-cyclopropyl-6-(4-(piperazin-1-yl)phenyl)-3H-imidazo[4,5-c]pyridin-4-yl)oxy)ethyl)pyrrolidin-2-one 3.42 (25 mg, 0.046 mmol) and triethylamine (27 mg, 0.27 mmol) were dissolved in DCM (1.5 mL). To this mixture 2,2,2-trifluoroethyl trifluoromethanesulfonate (12 mg, 0.053 mmol) was added and the mixture was stirred at room temperature for 24 h. The mixture was concentrated under reduced pressure and the residue was purified via prep HPLC (2-65% acetonitrile in water, 0.1% trifluoroacteic acid) to provide (R)-4-((R)-1-((3-cyclopropyl-6-(4-(4-(2,2,2-trifluoroethyl)piperazin-1-yl)phenyl)-3H-imidazo[4,5-c]pyridin-4-yl)oxy)ethyl)pyrrolidin-2-one 3.47 as its trifluoroacetic acid salt.

1. concentrationThe mixture was concentrated under reduced pressure
2. customthe residue was purified via prep HPLC (2-65% acetonitrile in water, 0.1% trifluoroacteic acid)

ORD-Eintrag

ord-79a60cb494514b24ae9059752cff2fd1

Quelldatensatz

uspto-grants-2016_06

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US09376441B2