Methanol → HCID 86708604, compound

Participants

Reaction Conditions

Reaction Steps

2-((2-chloro-5-cyano-3-(4-(oxetan-3-ylamino)piperidin-1-yl)phenyl)amino)-4-(ethylamino)imidazo[2,1-f][1,2,4]triazine-7-carbonitrile (Example 363)(20 mg, 0.041 mmol) in MeOH (6 mL)/THF (3 mL) at 0° C. (ice bath) was added DIPEA (21.26 μl, 0.122 mmol) and methyl carbonochloride [(60 μl, 0.775 mmol) total 3× (20 μl, 0.258 mmol) portions]. The reaction stirred at 25° C. for 30 min and the mixture was diluted with EtOAc, washed with sat'd NaHCO3 and brine. The organic layer was dried over Na2SO4 and concentrated. The crude material was purified via preparative LC/MS with the following conditions: Column: Waters XBridge C18, 19×200 mm, 5-μm particles; Guard Column: Waters XBridge C18, 19×10 mm, 5-μm particles; Mobile Phase A: water with 20-mM ammonium acetate; Mobile Phase B: 95:5 acetonitrile: water with 20-mM ammonium acetate; Gradient: 40-80% B over 20 minutes, then a 5-minute hold at 100% B; Flow: 20 mL/min. Fractions containing the desired product were combined and dried via centrifugal evaporation to afford methyl (1-(2-chloro-5-cyano-3-((7-cyano-4-(ethylamino)imidazo[2,1-f][1,2,4]triazin-2-yl)amino)phenyl)piperidin-4-yl)(oxetan-3-yl)carbamate (5.8 mg).

Provenance & Evidence